The number of 16s in 252 is equal to 252÷16.
Step 1: Turn the second fraction upside down (it becomes a reciprocal)
16 becomes 61
Step 2: Multiply the first fraction by that reciprocal. Multiply the top numbers and the bottom numbers as follows.
∴252×61=25×62×1
Step 3: Simplify the fraction
=5×5×3×22×1
=5×5×3
=75
Hence, number of 16s in 252 is 75.