IIRC you are correct, there are one or two spots in the Knuth division algorithm where having a power-of-2 dividend lets you eliminate a shift or an addition or

IIRC you are correct, there are one or two spots in the Knuth division algorithm where having a power-of-2 dividend lets you eliminate a shift or an addition or something -- but nothing (nothing obvious, at least!) that yields a significant speedup.