We look at the division of 570875 by 72 
The aim is to understand the frequency of 72 in 570875.

Going ahead to step 1:
When dividing 5 by 72, we get 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 72

Going ahead to step 2:
72 goes into 57 0 times with a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 57 and we're left with 57.
Fetch the next digit (0) from the dividend, attach it to 57 and continue: 570 / 72

Moving on to step 3:
72 can be fit into 570 7 times, resulting in a remainder of 66.
Write down 7 as next digit of the result. 
Result so far: 7.0
Subtract 504 from 570 to get 66.
Fetch the next digit (8) from the dividend, attach it to 66 and continue: 668 / 72

Step 4:
The number 72 fits into 668 9 times, leaving a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 79.0
Subtract 648 from 668 to get 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 72

Moving on to step 5:
207 divided by 72 is 2 with a remainder of 63.
The next digit of our result is 2. 
Result so far: 792.0
Subtracting 144 from 207 leaves us with 63.
Fetch the next digit (5) from the dividend, attach it to 63 and continue: 635 / 72

Advancing to step 6:
If we divide 635 by 72, we get 8 and a remainder of 59.
Record the quotient 8 as the next digit in the result. 
Result so far: 7928.0
Deduct 576 from 635 and we're left with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Let's proceed to step 7:
72 can be fit into 590 8 times, resulting in a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 7928.8
The remainder is 14 after subtracting 576 from 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
When dividing 140 by 72, we get 1 with a remainder of 68.
The number 1 becomes the next digit in our result. 
Result so far: 7928.81
If we take 72 away from 140, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 9:
The number 72 fits into 680 9 times, leaving a remainder of 32.
Put 9 as the next digit of the answer. 
Result so far: 7928.819
If we subtract 648 from 680, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 10:
The number 72 fits into 320 4 times, leaving a remainder of 32.
Use 4 as the next digit of our solution. 
Result so far: 7928.8194
Subtracting 288 from 320 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 11:
320 divided by 72 is 4 with a remainder of 32.
The number 4 becomes the next digit in our result. 
Result so far: 7928.81944
The remainder is 32 after subtracting 288 from 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final result is 7928.81944 with a remainder of 3.2e-05.