We look at the division of 71620081 by 572 
The aim is to understand the frequency of 572 in 71620081.

Advancing to step 1:
572 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 572

Let's proceed to step 2:
572 can be fit into 71 0 times, resulting in a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 71, we end up with 71.
Grab the next digit (6) from the dividend, add it to 71, then carry on: 716 / 572

Let's proceed to step 3:
If we divide 716 by 572, we get 1 and a remainder of 144.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 572 away from 716, we end up with 144.
Include the next digit (2) from the dividend after 144, then repeat: 1442 / 572

Going ahead to step 4:
572 can be fit into 1442 2 times, resulting in a remainder of 298.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtracting 1144 from 1442 leaves us with 298.
Include the next digit (0) from the dividend after 298, then repeat: 2980 / 572

Going ahead to step 5:
If we divide 2980 by 572, we get 5 and a remainder of 120.
Record the quotient 5 as the next digit in the result. 
Result so far: 125.0
Subtract 2860 from 2980 to get 120.
Take the next digit (0) from the dividend and append it to 120, then repeat: 1200 / 572

On to step 6:
572 goes into 1200 2 times with a remainder of 56.
Use 2 as the next digit of our solution. 
Result so far: 1252.0
Subtracting 1144 from 1200 leaves us with 56.
Include the next digit (8) from the dividend after 56, then repeat: 568 / 572

Moving on to step 7:
572 goes into 568 0 times with a remainder of 568.
The number 0 becomes the next digit in our result. 
Result so far: 12520.0
The remainder is 568 after subtracting 0 from 568.
Append the next digit (1) from the dividend to 568 and continue with: 5681 / 572

Going ahead to step 8:
When dividing 5681 by 572, we get 9 with a remainder of 533.
Write down 9 as next digit of the result. 
Result so far: 125209.0
Deduct 5148 from 5681 and we're left with 533.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Moving on to step 9:
5330 divided by 572 is 9 with a remainder of 182.
Write down 9 as next digit of the result. 
Result so far: 125209.9
Subtract 5148 from 5330 to get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 10:
572 goes into 1820 3 times with a remainder of 104.
Put 3 as the next digit of the answer. 
Result so far: 125209.93
The remainder is 104 after subtracting 1716 from 1820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Step 11:
If we divide 1040 by 572, we get 1 and a remainder of 468.
Write down 1 as next digit of the result. 
Result so far: 125209.931
If we subtract 572 from 1040, we get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Going ahead to step 12:
572 goes into 4680 8 times with a remainder of 104.
Put 8 as the next digit of the answer. 
Result so far: 125209.9318
The remainder is 104 after subtracting 4576 from 4680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

On to step 13:
The number 572 fits into 1040 1 times, leaving a remainder of 468.
The number 1 becomes the next digit in our result. 
Result so far: 125209.93181
Subtracting 572 from 1040 leaves us with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Moving on to step 14:
572 can be fit into 4680 8 times, resulting in a remainder of 104.
The next digit of our result is 8. 
Result so far: 125209.931818
The remainder is 104 after subtracting 4576 from 4680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Advancing to step 15:
If we divide 1040 by 572, we get 1 and a remainder of 468.
Record the quotient 1 as the next digit in the result. 
Result so far: 125209.9318181
Deduct 572 from 1040 and we're left with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Advancing to step 16:
4680 divided by 572 is 8 with a remainder of 104.
Put 8 as the next digit of the answer. 
Result so far: 125209.93181818
If we subtract 4576 from 4680, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

The quotient of the division is 125209.93181818, and the remainder is 1.04e-07.