We look at the division of 486569 by 72 
The aim is to understand the frequency of 72 in 486569.

Going ahead to step 1:
When dividing 4 by 72, we get 0 with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 72

Advancing to step 2:
72 can be fit into 48 0 times, resulting in a remainder of 48.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 48, we end up with 48.
Include the next digit (6) from the dividend after 48, then repeat: 486 / 72

On to step 3:
486 divided by 72 is 6 with a remainder of 54.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we take 432 away from 486, we end up with 54.
Append the next digit (5) from the dividend to 54 and continue with: 545 / 72

Going ahead to step 4:
72 goes into 545 7 times with a remainder of 41.
Write down 7 as next digit of the result. 
Result so far: 67.0
If we take 504 away from 545, we end up with 41.
Fetch the next digit (6) from the dividend, attach it to 41 and continue: 416 / 72

Step 5:
72 goes into 416 5 times with a remainder of 56.
Put 5 as the next digit of the answer. 
Result so far: 675.0
Deduct 360 from 416 and we're left with 56.
Grab the next digit (9) from the dividend, add it to 56, then carry on: 569 / 72

On to step 6:
569 divided by 72 is 7 with a remainder of 65.
Use 7 as the next digit of our solution. 
Result so far: 6757.0
The remainder is 65 after subtracting 504 from 569.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 7:
If we divide 650 by 72, we get 9 and a remainder of 2.
The next digit of our result is 9. 
Result so far: 6757.9
Subtracting 648 from 650 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 8:
The number 72 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 6757.9
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
72 goes into 200 2 times with a remainder of 56.
Record the quotient 2 as the next digit in the result. 
Result so far: 6757.902
If we take 144 away from 200, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 10:
If we divide 560 by 72, we get 7 and a remainder of 56.
Record the quotient 7 as the next digit in the result. 
Result so far: 6757.9027
Subtracting 504 from 560 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 11:
72 goes into 560 7 times with a remainder of 56.
Use 7 as the next digit of our solution. 
Result so far: 6757.90277
If we take 504 away from 560, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

The final result is 6757.90277 with a remainder of 5.6e-05.