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fit in their is the most popular phrase on the web.

fit to their 13,550,000 results on the web	fit in their 13,970,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
It doesn't look like this phrase is very popular! The search could not find any examples on the internet.	We have demanded that Lincoln Grove high school offer programs for special students to help them fit in with their classmates. Nothing they can't fit in their pockets... To be told by some best buy manager that your mobility scooter can't fit in their bathroom. Of course not, because they fit in with their ideology. Nothing they can't fit in their pockets... followed by the "most likely to not fit in their dress" That certainly would fit in to their tribal customs. Otherwise, whoever had a majority at any given time could choose whichever Commissioner they liked as a whipping boy to fit in with their electoral calendar.

fit to their

13,550,000 results on the web

fit in their

13,970,000 results on the web

More popular!

It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

We have demanded that Lincoln Grove high school offer programs for special students to help them fit in with their classmates.
Nothing they can't fit in their pockets...
To be told by some best buy manager that your mobility scooter can't fit in their bathroom.
Of course not, because they fit in with their ideology.
Nothing they can't fit in their pockets...
followed by the "most likely to not fit in their dress"
That certainly would fit in to their tribal customs.
Otherwise, whoever had a majority at any given time could choose whichever Commissioner they liked as a whipping boy to fit in with their electoral calendar.