20501538 ÷ 921 
The aim is to understand the frequency of 921 in 20501538.

Step 1:
2 divided by 921 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 921

On to step 2:
The number 921 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 20, we get 20.
Include the next digit (5) from the dividend after 20, then repeat: 205 / 921

Moving on to step 3:
When dividing 205 by 921, we get 0 with a remainder of 205.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 205 and we're left with 205.
Fetch the next digit (0) from the dividend, attach it to 205 and continue: 2050 / 921

Moving on to step 4:
The number 921 fits into 2050 2 times, leaving a remainder of 208.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 208 after subtracting 1842 from 2050.
Bring next digit (1) of the dividend behind the 208 and repeat the process: 2081 / 921

Advancing to step 5:
When dividing 2081 by 921, we get 2 with a remainder of 239.
The next digit of our result is 2. 
Result so far: 22.0
Subtracting 1842 from 2081 leaves us with 239.
Include the next digit (5) from the dividend after 239, then repeat: 2395 / 921

Step 6:
The number 921 fits into 2395 2 times, leaving a remainder of 553.
Put 2 as the next digit of the answer. 
Result so far: 222.0
If we subtract 1842 from 2395, we get 553.
Fetch the next digit (3) from the dividend, attach it to 553 and continue: 5533 / 921

On to step 7:
When dividing 5533 by 921, we get 6 with a remainder of 7.
The next digit of our result is 6. 
Result so far: 2226.0
The remainder is 7 after subtracting 5526 from 5533.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 921

On to step 8:
When dividing 78 by 921, we get 0 with a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 22260.0
Subtracting 0 from 78 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 9:
921 can be fit into 780 0 times, resulting in a remainder of 780.
The next digit of our result is 0. 
Result so far: 22260.0
Deduct 0 from 780 and we're left with 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Let's proceed to step 10:
If we divide 7800 by 921, we get 8 and a remainder of 432.
The next digit of our result is 8. 
Result so far: 22260.08
If we subtract 7368 from 7800, we get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Advancing to step 11:
921 can be fit into 4320 4 times, resulting in a remainder of 636.
Use 4 as the next digit of our solution. 
Result so far: 22260.084
If we take 3684 away from 4320, we end up with 636.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6360, and continue the process.

Step 12:
The number 921 fits into 6360 6 times, leaving a remainder of 834.
Put 6 as the next digit of the answer. 
Result so far: 22260.0846
If we take 5526 away from 6360, we end up with 834.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8340, and continue the process.

Let's proceed to step 13:
The number 921 fits into 8340 9 times, leaving a remainder of 51.
Put 9 as the next digit of the answer. 
Result so far: 22260.08469
If we subtract 8289 from 8340, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Let's proceed to step 14:
921 goes into 510 0 times with a remainder of 510.
Write down 0 as next digit of the result. 
Result so far: 22260.08469
If we take 0 away from 510, we end up with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Moving on to step 15:
921 goes into 5100 5 times with a remainder of 495.
Write down 5 as next digit of the result. 
Result so far: 22260.0846905
Deduct 4605 from 5100 and we're left with 495.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4950, and continue the process.

Advancing to step 16:
4950 divided by 921 is 5 with a remainder of 345.
Put 5 as the next digit of the answer. 
Result so far: 22260.08469055
Deduct 4605 from 4950 and we're left with 345.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3450, and continue the process.

The quotient of the division is 22260.08469055, and the remainder is 3.45e-07.