pie="π"

Take 0.025µ^4π² + 50µ²π^4 by 5µπ^3

Well there's the problem, and I have the answer, witch is (0.005µ^3 over π) + 10µπ. I'm just having a hard time doing the long division.

I've come up with many other answers, none of course being the right one. It's kind of a big favor to ask, but can someone explain the long division to me.