Skinning, quartering, washing up the quarters, deboning, slicing steaks/roasts, chunking up stedw meat, trimming gristle and sinew from everything, grinding and packaging....yeah about 6 hours. The second or third deer goes more quickly, by the time I am doing the 8th deer of the year I am down to about 4 hours including cleanup.
I sometimes wish I hadn't told friends of mine I enjoy butchering deer. My usual fee is one whole backstrap and two roasts, plus I get the backstrap sinews and leg sinews.