I'd only ever use a bitshift if the intention of the code was to move the bits left or right (e.g. moving red, green or blue pixel component bits into the right

I'd only ever use a bitshift if the intention of the code was to move the bits left or right (e.g. moving red, green or blue pixel component bits into the right position) or if it was absolutely required for speed as it's less readable if your intention is to divide a number. C compilers will easily optimise simple integer divisions like this for example.