In British English, if you take a problem or difficulty in your stride, you deal with it calmly and easily. The American expression is take something in stride.
Beth was struck by how Naomi took the mistake in her stride.
See full dictionary entry for stride
take something in your stride
or take something in stride
to deal with a difficult situation calmly and successfully
Ridley didn't start shouting, or anything like that. In fact, right until the endhe seemed to be taking it all in his stride.
Synonyms of 'take sth in your stride'
deal or cope with easily, think nothing of, not bat an eyelid, not be fazed by