We look at the division of 37187 by 72 
The aim is to understand the frequency of 72 in 37187.

Advancing to step 1:
72 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Append the next digit (7) from the dividend to 3 and continue with: 37 / 72

Going ahead to step 2:
When dividing 37 by 72, we get 0 with a remainder of 37.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 37, we end up with 37.
Take the next digit (1) from the dividend and append it to 37, then repeat: 371 / 72

Advancing to step 3:
72 goes into 371 5 times with a remainder of 11.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 360 from 371 to get 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 72

Moving on to step 4:
72 goes into 118 1 times with a remainder of 46.
Use 1 as the next digit of our solution. 
Result so far: 51.0
If we take 72 away from 118, we end up with 46.
Fetch the next digit (7) from the dividend, attach it to 46 and continue: 467 / 72

Step 5:
The number 72 fits into 467 6 times, leaving a remainder of 35.
Record the quotient 6 as the next digit in the result. 
Result so far: 516.0
Subtract 432 from 467 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 6:
The number 72 fits into 350 4 times, leaving a remainder of 62.
Record the quotient 4 as the next digit in the result. 
Result so far: 516.4
Deduct 288 from 350 and we're left with 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Step 7:
72 goes into 620 8 times with a remainder of 44.
The next digit of our result is 8. 
Result so far: 516.48
Deduct 576 from 620 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 8:
440 divided by 72 is 6 with a remainder of 8.
The next digit of our result is 6. 
Result so far: 516.486
Deduct 432 from 440 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
72 can be fit into 80 1 times, resulting in a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 516.4861
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 10:
72 goes into 80 1 times with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 516.48611
If we subtract 72 from 80, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 516.48611 with a remainder of 8e-06.