Every problem divides exactly — no remainders — so the sheets drill the multiplication facts in reverse before the remainder concept complicates things.
Early division practice works best when everything divides cleanly: the child can check each answer by multiplying back, and the fact families get traversed in both directions. The generator constructs each problem from its answer, so quotients always come out whole.
Widen the dividend for long-division practice once fact-level division is quick — the exactness guarantee holds at every size.