Oh, you want a classroom lesson. After the kill you have one of two choices. You can either cut up the animal and carry it home in pieces, making multiple trips to do so if alone. Or you can process the animal on the spot. Taking a few days to do so.

If you are persistence hunting, you are almost always hunting in a pack. And everyone can carry something back to the camp. Remember: Not everything is going to be brought back. A moose will dress out maybe at 50% at best. And you leave what you can't carry or don't want behind. Modern hunters often do similar today. If I can't get a pickup or 4 wheeler to the spot, I field dress the deer and cut it into quarters and make a couple of trips to carry the meat out. A 200lbs deer will yield about 90lbs of edible meat-- give or take. Easily carried out by one person in 2 trips.

Or you can process the carcass on the spot. It was a common hunting technique in the North Americas to run a herd of animals like bison off a cliff to kill or cripple them. It might take a day or two to set things up, but as the hunt began and the herd was funneled to the cliff, the rest of the group, those that weren't able to actively participate in the hunt, would follow at a distance behind the hunters. When the herd was run off the cliff, everyone would set up camp right by the kill area and simply eat and process as much as they wanted for later. Again, leaving behind what they couldn't process or want.

All this information is available by a simple search if you want to know more. A method I highly encourage everyone to use to gain knowledge.