Here is a fine presentation on the finer points of solving a long division problem. Mathematicians are introduced to the divisor, the quotient, and the dividend. They are shown the series of steps necessary to solve these types of problems. This is a unique PowerPoint in that it has text with each slide that's meant to simulate what the students are thinking about and being confused by when solving a long division problem. There are plenty of practice problems at the end for learners to work with.