21001852 divided by 564 
The aim is to understand the frequency of 564 in 21001852.

Moving on to step 1:
564 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 564

Moving on to step 2:
564 goes into 21 0 times with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 564

Let's proceed to step 3:
When dividing 210 by 564, we get 0 with a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 210 leaves us with 210.
Bring next digit (0) of the dividend behind the 210 and repeat the process: 2100 / 564

Let's proceed to step 4:
When dividing 2100 by 564, we get 3 with a remainder of 408.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 1692 from 2100 leaves us with 408.
Bring next digit (1) of the dividend behind the 408 and repeat the process: 4081 / 564

Moving on to step 5:
The number 564 fits into 4081 7 times, leaving a remainder of 133.
Put 7 as the next digit of the answer. 
Result so far: 37.0
Subtracting 3948 from 4081 leaves us with 133.
Include the next digit (8) from the dividend after 133, then repeat: 1338 / 564

Going ahead to step 6:
564 goes into 1338 2 times with a remainder of 210.
The number 2 becomes the next digit in our result. 
Result so far: 372.0
Subtract 1128 from 1338 to get 210.
Grab the next digit (5) from the dividend, add it to 210, then carry on: 2105 / 564

Let's proceed to step 7:
564 can be fit into 2105 3 times, resulting in a remainder of 413.
Use 3 as the next digit of our solution. 
Result so far: 3723.0
Subtracting 1692 from 2105 leaves us with 413.
Bring next digit (2) of the dividend behind the 413 and repeat the process: 4132 / 564

On to step 8:
When dividing 4132 by 564, we get 7 with a remainder of 184.
The next digit of our result is 7. 
Result so far: 37237.0
If we take 3948 away from 4132, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Step 9:
When dividing 1840 by 564, we get 3 with a remainder of 148.
Record the quotient 3 as the next digit in the result. 
Result so far: 37237.3
If we subtract 1692 from 1840, we get 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Let's proceed to step 10:
564 can be fit into 1480 2 times, resulting in a remainder of 352.
Record the quotient 2 as the next digit in the result. 
Result so far: 37237.32
If we take 1128 away from 1480, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 11:
The number 564 fits into 3520 6 times, leaving a remainder of 136.
Use 6 as the next digit of our solution. 
Result so far: 37237.326
Subtracting 3384 from 3520 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 12:
564 can be fit into 1360 2 times, resulting in a remainder of 232.
The next digit of our result is 2. 
Result so far: 37237.3262
The remainder is 232 after subtracting 1128 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

On to step 13:
2320 divided by 564 is 4 with a remainder of 64.
Record the quotient 4 as the next digit in the result. 
Result so far: 37237.32624
Subtracting 2256 from 2320 leaves us with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 14:
564 can be fit into 640 1 times, resulting in a remainder of 76.
The number 1 becomes the next digit in our result. 
Result so far: 37237.326241
If we take 564 away from 640, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 15:
564 can be fit into 760 1 times, resulting in a remainder of 196.
Put 1 as the next digit of the answer. 
Result so far: 37237.3262411
Subtract 564 from 760 to get 196.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1960, and continue the process.

After the division, we end up with 37237.3262411 and a remainder of 1.96e-06.