How Can You Use Estimation To Find The Quotient Of 57/3?

Yes.
You can recognize 57 is about 60 and 60/3 = 20. The result will be about 20.

You can take it a step further and recognize
  57/3
  = (60 - 3)/3
  = 60/3 - 3/3
  = 20 - 1
  = 19