to cut and divide; to cut up; to cut into pieces; to carve (up)
to distinguish (e.g. facets of a problem); to isolate
ケーキを八等分に切り分ける。
Cut the cake into eight equal pieces
肉を食べやすく切り分けた。
I carved the meat into easy to eat pieces
ピザを皆で切り分けて食べる。
We cut up and share the pizza together