We divide 660211 by 72
The aim is to understand the frequency of 72 in 660211.

Let's proceed to step 1:
The number 72 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 72

Advancing to step 2:
When dividing 66 by 72, we get 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 66 and we're left with 66.
Fetch the next digit (0) from the dividend, attach it to 66 and continue: 660 / 72

Advancing to step 3:
When dividing 660 by 72, we get 9 with a remainder of 12.
The next digit of our result is 9. 
Result so far: 9.0
If we subtract 648 from 660, we get 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 72

Moving on to step 4:
72 goes into 122 1 times with a remainder of 50.
The next digit of our result is 1. 
Result so far: 91.0
If we take 72 away from 122, we end up with 50.
Append the next digit (1) from the dividend to 50 and continue with: 501 / 72

Moving on to step 5:
When dividing 501 by 72, we get 6 with a remainder of 69.
Put 6 as the next digit of the answer. 
Result so far: 916.0
If we subtract 432 from 501, we get 69.
Take the next digit (1) from the dividend and append it to 69, then repeat: 691 / 72

Going ahead to step 6:
When dividing 691 by 72, we get 9 with a remainder of 43.
Use 9 as the next digit of our solution. 
Result so far: 9169.0
Deduct 648 from 691 and we're left with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
The number 72 fits into 430 5 times, leaving a remainder of 70.
The next digit of our result is 5. 
Result so far: 9169.5
Subtract 360 from 430 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Step 8:
72 can be fit into 700 9 times, resulting in a remainder of 52.
Use 9 as the next digit of our solution. 
Result so far: 9169.59
The remainder is 52 after subtracting 648 from 700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 9:
520 divided by 72 is 7 with a remainder of 16.
Write down 7 as next digit of the result. 
Result so far: 9169.597
The remainder is 16 after subtracting 504 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 10:
72 goes into 160 2 times with a remainder of 16.
Write down 2 as next digit of the result. 
Result so far: 9169.5972
Deduct 144 from 160 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 11:
160 divided by 72 is 2 with a remainder of 16.
Record the quotient 2 as the next digit in the result. 
Result so far: 9169.59722
Subtract 144 from 160 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 9169.59722, with a leftover of 1.6e-05.