Looking on the internet deeply has found these results:

in step is the most popular phrase on the web.

on step 1323,000 results on the web	in step 127,400,000 results on the web More popular!
Some examples and use cases from the internet:	Some examples and use cases from the internet:
1 · Favorite Season/Worst Season · jamesstokes724 · I just started season 6. G place or press the foot on; " He stepped on the hem of her long gown". tread on · tread, step Verb, 1. step on Keanan was the first of the two Going Places stars to be cast on Step By Step in the spring of 1991. Castile, who had played gawky child Sam Roberts on Going ... Top 3 worst cast members on Step by Step · acilu Joshua put down or ... place or press the foot on step on	It doesn't look like this phrase is very popular! The search could not find any examples on the internet.

on step

1323,000 results on the web

in step

127,400,000 results on the web

More popular!

1 · Favorite Season/Worst Season · jamesstokes724 · I just started season 6. G
place or press the foot on; " He stepped on the hem of her long gown". tread on · tread, step
Verb, 1. step on
Keanan was the first of the two Going Places stars to be cast on Step By Step in the spring of 1991. Castile, who had played gawky child Sam Roberts on Going ...
Top 3 worst cast members on Step by Step · acilu
Joshua
put down or ...
place or press the foot on step on

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