1.
If you fit into a particular group, you seem to belong there because you are similar to the other people in it.
It’s hard to see how he would fit into the team.
PHRASAL VERB : V P n (not pron)
2.
If something fits into a particular situation or system, that seems to be the right place for it.
Most film locations broadly fit into two categories; those on private property and those in a public place.
PHRASAL VERB : V P n