The next major step is complete evisceration of the carcass
To begin, make a cut from the solar plexus
The point between the breastbone and stomach
Almost to the anus
Be very careful not to cut into the intestines
As this will contaminate the surrounding area with bacteria
And possibly feces (if this does happen, cleanse thoroughly)
A good way to avoid this is to use the knife inside the abdominal wall
Blade facing toward you, and making cautious progress