Investigate calculation inaccuracy

There are several occasions on which a value is multiplied by the inverse of a number instead of a division. This may yield to inaccuracy, and can be easly fixed by changing the calculation order, but each occasion has to be evaluated individually.

Search the C++ codebase for calculations that multiply by an inverse instead of dividing, then evaluate each occurrence individually for numerical accuracy. Done means the affected calculations use the appropriate order and existing behavior remains correct; the issue names no files or tests, so a suitable validation path must first be identified.

Written by the indexing model from the issue text.