We look at the division of 66473152 by 572 
The aim is to understand the frequency of 572 in 66473152.

On to step 1:
572 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 572

On to step 2:
When dividing 66 by 572, we get 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Grab the next digit (4) from the dividend, add it to 66, then carry on: 664 / 572

Going ahead to step 3:
When dividing 664 by 572, we get 1 with a remainder of 92.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 572 from 664 and we're left with 92.
Include the next digit (7) from the dividend after 92, then repeat: 927 / 572

Going ahead to step 4:
572 goes into 927 1 times with a remainder of 355.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 572 from 927 to get 355.
Include the next digit (3) from the dividend after 355, then repeat: 3553 / 572

Moving on to step 5:
If we divide 3553 by 572, we get 6 and a remainder of 121.
Write down 6 as next digit of the result. 
Result so far: 116.0
If we subtract 3432 from 3553, we get 121.
Include the next digit (1) from the dividend after 121, then repeat: 1211 / 572

Going ahead to step 6:
572 can be fit into 1211 2 times, resulting in a remainder of 67.
Use 2 as the next digit of our solution. 
Result so far: 1162.0
Subtracting 1144 from 1211 leaves us with 67.
Include the next digit (5) from the dividend after 67, then repeat: 675 / 572

On to step 7:
When dividing 675 by 572, we get 1 with a remainder of 103.
Record the quotient 1 as the next digit in the result. 
Result so far: 11621.0
If we take 572 away from 675, we end up with 103.
Include the next digit (2) from the dividend after 103, then repeat: 1032 / 572

Going ahead to step 8:
When dividing 1032 by 572, we get 1 with a remainder of 460.
The next digit of our result is 1. 
Result so far: 116211.0
If we subtract 572 from 1032, we get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Moving on to step 9:
572 goes into 4600 8 times with a remainder of 24.
The number 8 becomes the next digit in our result. 
Result so far: 116211.8
Deduct 4576 from 4600 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 10:
572 can be fit into 240 0 times, resulting in a remainder of 240.
The next digit of our result is 0. 
Result so far: 116211.8
Subtracting 0 from 240 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 11:
2400 divided by 572 is 4 with a remainder of 112.
Put 4 as the next digit of the answer. 
Result so far: 116211.804
The remainder is 112 after subtracting 2288 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Advancing to step 12:
If we divide 1120 by 572, we get 1 and a remainder of 548.
Put 1 as the next digit of the answer. 
Result so far: 116211.8041
The remainder is 548 after subtracting 572 from 1120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Moving on to step 13:
If we divide 5480 by 572, we get 9 and a remainder of 332.
The next digit of our result is 9. 
Result so far: 116211.80419
If we subtract 5148 from 5480, we get 332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Going ahead to step 14:
When dividing 3320 by 572, we get 5 with a remainder of 460.
The next digit of our result is 5. 
Result so far: 116211.804195
Subtract 2860 from 3320 to get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Going ahead to step 15:
When dividing 4600 by 572, we get 8 with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 116211.8041958
Subtract 4576 from 4600 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 16:
572 goes into 240 0 times with a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 116211.8041958
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The final result is 116211.8041958 with a remainder of 2.4e-07.