cannot install steam on my laptop

im new to ubuntu and everytime i try to install steam i get this error message

This error could be caused by required additional software packages which are missing or not installable. Furthermore there could be a conflict between software packages which are not allowed to be installed at the same time.

The following packages have unmet dependencies:

steam64: Depends: steam (= 1.0.0.27ubuntu1) but it is not going to be installed

any and all help would be great and thanks in advance

i went to another answer site and this is what i came up with after follwing the instructions

ryan@ubuntu:~$ wget http://media.steampowered.com/client/installer/steam.deb
--2013-02-18 03:33:07-- http://media.steampowered.com/client/installer/steam.deb
Resolving media.steampowered.com (media.steampowered.com)... 208.111.128.7, 208.111.128.6
Connecting to media.steampowered.com (media.steampowered.com)|208.111.128.7|:80... connected.
HTTP request sent, awaiting response... 301 Moved Permanently
Location: http://repo.steampowered.com/steam/archive/precise/steam_latest.deb [following]
--2013-02-18 03:33:07-- http://repo.steampowered.com/steam/archive/precise/steam_latest.deb
Resolving repo.steampowered.com (repo.steampowered.com)... 208.64.203.149
Connecting to repo.steampowered.com (repo.steampowered.com)|208.64.203.149|:80... connected.
HTTP request sent, awaiting response... 200 OK
Length: 2460606 (2.3M) [application/x-debian-package]
Saving to: `steam.deb'

 0% 0 --.-K/s 1% 25,555 98.5K/s 2% 57,235 109K/s 3% 88,915 117K/s 4% 116,275 120K/s 5% 140,755 118K/s 7% 173,875 124K/s 8% 206,995 126K/s 9% 244,435 132K/s 11% 287,635 137K/s 13% 325,075 141K/s 15% 375,475 149K/s 16% 410,035 149K/s 19% 469,075 157K/s 21% 523,795 161K/s eta 12s 24% 591,475 170K/s eta 12s 26% 647,635 176K/s eta 12s 28% 708,115 182K/s eta 12s 32% 791,635 201K/s eta 12s 34% 856,435 213K/s eta 8s 38% 942,835 234K/s eta 8s 41% 1,022,035 239K/s eta 8s 42% 1,058,035 225K/s eta 7s 43% 1,078,195 218K/s eta 7s 45% 1,122,835 215K/s eta 7s 49% 1,206,355 221K/s eta 7s 50% 1,250,547 218K/s eta 6s 52% 1,291,315 213K/s eta 6s 53% 1,313,907 203K/s eta 6s 56% 1,379,155 204K/s eta 6s 57% 1,407,955 196K/s eta 6s 58% 1,429,555 187K/s eta 6s 59% 1,462,675 177K/s eta 6s 60% 1,495,795 171K/s eta 6s 62% 1,533,235 169K/s eta 5s 64% 1,593,715 166K/s eta 5s 66% 1,644,115 158K/s eta 5s 68% 1,687,315 153K/s eta 5s 70% 1,742,035 153K/s eta 5s 72% 1,788,115 151K/s eta 4s 74% 1,835,635 157K/s eta 4s 76% 1,884,595 165K/s eta 4s 78% 1,934,995 170K/s eta 4s 80% 1,979,635 164K/s eta 4s 82% 2,040,115 174K/s eta 2s 84% 2,081,875 181K/s eta 2s 100%[=========================================================>] 2,460,606 244K/s in 12s

2013-02-18 03:33:20 (194 KB/s) - `steam.deb' saved [2460606/2460606]

ryan@ubuntu:~$ sudo apt-get install gdebi-core
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following packages were automatically installed and are no longer required:
  linux-headers-3.5.0-17 linux-headers-3.5.0-17-generic
Use 'apt-get autoremove' to remove them.
The following NEW packages will be installed:
  gdebi-core
0 upgraded, 1 newly installed, 0 to remove and 0 not upgraded.
Need to get 165 kB of archives.
After this operation, 1,199 kB of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu/ quantal-updates/universe gdebi-core all 0.8.5ubuntu1.1 [165 kB]
Fetched 165 kB in 0s (173 kB/s)
Selecting previously unselected package gdebi-core.
(Reading database ... 175193 files and directories currently installed.)
Unpacking gdebi-core (from .../gdebi-core_0.8.5ubuntu1.1_all.deb) ...
Processing triggers for man-db ...
Setting up gdebi-core (0.8.5ubuntu1.1) ...
ryan@ubuntu:~$ sudo gdebi steam.deb
Reading package lists... Done
Building dependency tree
Reading state information... Done
Building data structures... Done
This package is uninstallable
Wrong architecture 'i386'