Question 139769
Actually, polynomial long division works just fine.  I suspect that when you tried it, you made a very common error.  You must put in place holders for missing terms before you start the long division process.  Your numerator needs to be changed to look like this:


{{{x^3+0x^2y-8xy^2+3y^3}}}.  Try your long division again using this expression as your dividend and see if that doesn't work out for you.  Write back if you are still having problems.