We divide 747521 by 72
The aim is to understand the frequency of 72 in 747521.

Going ahead to step 1:
The number 72 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 72

Going ahead to step 2:
72 goes into 74 1 times with a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 72 from 74 and we're left with 2.
Include the next digit (7) from the dividend after 2, then repeat: 27 / 72

Moving on to step 3:
72 can be fit into 27 0 times, resulting in a remainder of 27.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
Deduct 0 from 27 and we're left with 27.
Fetch the next digit (5) from the dividend, attach it to 27 and continue: 275 / 72

On to step 4:
The number 72 fits into 275 3 times, leaving a remainder of 59.
Put 3 as the next digit of the answer. 
Result so far: 103.0
The remainder is 59 after subtracting 216 from 275.
Append the next digit (2) from the dividend to 59 and continue with: 592 / 72

Going ahead to step 5:
If we divide 592 by 72, we get 8 and a remainder of 16.
Write down 8 as next digit of the result. 
Result so far: 1038.0
Deduct 576 from 592 and we're left with 16.
Append the next digit (1) from the dividend to 16 and continue with: 161 / 72

Going ahead to step 6:
161 divided by 72 is 2 with a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 10382.0
If we take 144 away from 161, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
170 divided by 72 is 2 with a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 10382.2
If we take 144 away from 170, we end up with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 8:
When dividing 260 by 72, we get 3 with a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 10382.23
Deduct 216 from 260 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 9:
If we divide 440 by 72, we get 6 and a remainder of 8.
The next digit of our result is 6. 
Result so far: 10382.236
Subtract 432 from 440 to 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.

Advancing to step 10:
When dividing 80 by 72, we get 1 with a remainder of 8.
The next digit of our result is 1. 
Result so far: 10382.2361
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.

Let's proceed to step 11:
When dividing 80 by 72, we get 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 10382.23611
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.

Our division results in 10382.23611 with a remaining 8e-06.