We're dividing 21761826 by 572 
The aim is to understand the frequency of 572 in 21761826.

Step 1:
The number 572 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 572

Moving on to step 2:
21 divided by 572 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Take the next digit (7) from the dividend and append it to 21, then repeat: 217 / 572

Going ahead to step 3:
If we divide 217 by 572, we get 0 and a remainder of 217.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 217 after subtracting 0 from 217.
Append the next digit (6) from the dividend to 217 and continue with: 2176 / 572

Going ahead to step 4:
572 goes into 2176 3 times with a remainder of 460.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 460 after subtracting 1716 from 2176.
Take the next digit (1) from the dividend and append it to 460, then repeat: 4601 / 572

Let's proceed to step 5:
If we divide 4601 by 572, we get 8 and a remainder of 25.
The next digit of our result is 8. 
Result so far: 38.0
If we subtract 4576 from 4601, we get 25.
Take the next digit (8) from the dividend and append it to 25, then repeat: 258 / 572

Going ahead to step 6:
258 divided by 572 is 0 with a remainder of 258.
Record the quotient 0 as the next digit in the result. 
Result so far: 380.0
If we subtract 0 from 258, we get 258.
Append the next digit (2) from the dividend to 258 and continue with: 2582 / 572

Advancing to step 7:
The number 572 fits into 2582 4 times, leaving a remainder of 294.
Write down 4 as next digit of the result. 
Result so far: 3804.0
If we subtract 2288 from 2582, we get 294.
Grab the next digit (6) from the dividend, add it to 294, then carry on: 2946 / 572

Advancing to step 8:
The number 572 fits into 2946 5 times, leaving a remainder of 86.
Record the quotient 5 as the next digit in the result. 
Result so far: 38045.0
Subtracting 2860 from 2946 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 9:
When dividing 860 by 572, we get 1 with a remainder of 288.
The number 1 becomes the next digit in our result. 
Result so far: 38045.1
The remainder is 288 after subtracting 572 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 10:
572 goes into 2880 5 times with a remainder of 20.
Put 5 as the next digit of the answer. 
Result so far: 38045.15
Subtracting 2860 from 2880 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 11:
If we divide 200 by 572, we get 0 and a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 38045.15
If we take 0 away from 200, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 12:
The number 572 fits into 2000 3 times, leaving a remainder of 284.
Record the quotient 3 as the next digit in the result. 
Result so far: 38045.1503
If we take 1716 away from 2000, we end up with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Let's proceed to step 13:
2840 divided by 572 is 4 with a remainder of 552.
The number 4 becomes the next digit in our result. 
Result so far: 38045.15034
Deduct 2288 from 2840 and we're left with 552.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5520, and continue the process.

Moving on to step 14:
5520 divided by 572 is 9 with a remainder of 372.
Put 9 as the next digit of the answer. 
Result so far: 38045.150349
Deduct 5148 from 5520 and we're left with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Going ahead to step 15:
572 can be fit into 3720 6 times, resulting in a remainder of 288.
The next digit of our result is 6. 
Result so far: 38045.1503496
Subtracting 3432 from 3720 leaves us with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

On to step 16:
If we divide 2880 by 572, we get 5 and a remainder of 20.
Use 5 as the next digit of our solution. 
Result so far: 38045.15034965
The remainder is 20 after subtracting 2860 from 2880.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

In conclusion, the division gives 38045.15034965 with a balance of 2e-08.