You need to do polynomial long division. Illustrating the process on this website is extremely tedious, and I just don't have the time right now to try and render this problem. So, your best bet right now is to go look at PurpleMath: http://www.purplemath.com/modules/polydiv2.htm or Wikipedia http://en.wikipedia.org/wiki/Polynomial_long_division.
If you are still having difficulty, write me a note and I'll try to find the time to do up a document for you this weekend.