21543081 ÷ 920 
We want to figure out the number of times 21543081 can be divided by 920.

Moving on to step 1:
If we divide 2 by 920, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 920

Moving on to step 2:
920 can be fit into 21 0 times, resulting in a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Bring next digit (5) of the dividend behind the 21 and repeat the process: 215 / 920

On to step 3:
When dividing 215 by 920, we get 0 with a remainder of 215.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 215 after subtracting 0 from 215.
Take the next digit (4) from the dividend and append it to 215, then repeat: 2154 / 920

Moving on to step 4:
920 can be fit into 2154 2 times, resulting in a remainder of 314.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1840 away from 2154, we end up with 314.
Include the next digit (3) from the dividend after 314, then repeat: 3143 / 920

Moving on to step 5:
3143 divided by 920 is 3 with a remainder of 383.
Put 3 as the next digit of the answer. 
Result so far: 23.0
Subtracting 2760 from 3143 leaves us with 383.
Append the next digit (0) from the dividend to 383 and continue with: 3830 / 920

On to step 6:
The number 920 fits into 3830 4 times, leaving a remainder of 150.
Put 4 as the next digit of the answer. 
Result so far: 234.0
The remainder is 150 after subtracting 3680 from 3830.
Fetch the next digit (8) from the dividend, attach it to 150 and continue: 1508 / 920

Let's proceed to step 7:
The number 920 fits into 1508 1 times, leaving a remainder of 588.
Use 1 as the next digit of our solution. 
Result so far: 2341.0
Subtracting 920 from 1508 leaves us with 588.
Grab the next digit (1) from the dividend, add it to 588, then carry on: 5881 / 920

Going ahead to step 8:
If we divide 5881 by 920, we get 6 and a remainder of 361.
Put 6 as the next digit of the answer. 
Result so far: 23416.0
If we take 5520 away from 5881, we end up with 361.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3610, and continue the process.

Moving on to step 9:
3610 divided by 920 is 3 with a remainder of 850.
Record the quotient 3 as the next digit in the result. 
Result so far: 23416.3
Deduct 2760 from 3610 and we're left with 850.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8500, and continue the process.

Step 10:
When dividing 8500 by 920, we get 9 with a remainder of 220.
Write down 9 as next digit of the result. 
Result so far: 23416.39
If we subtract 8280 from 8500, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 11:
The number 920 fits into 2200 2 times, leaving a remainder of 360.
Record the quotient 2 as the next digit in the result. 
Result so far: 23416.392
If we subtract 1840 from 2200, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Going ahead to step 12:
The number 920 fits into 3600 3 times, leaving a remainder of 840.
Write down 3 as next digit of the result. 
Result so far: 23416.3923
If we subtract 2760 from 3600, we get 840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8400, and continue the process.

Going ahead to step 13:
920 can be fit into 8400 9 times, resulting in a remainder of 120.
Write down 9 as next digit of the result. 
Result so far: 23416.39239
Subtract 8280 from 8400 to get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 14:
When dividing 1200 by 920, we get 1 with a remainder of 280.
Put 1 as the next digit of the answer. 
Result so far: 23416.392391
If we subtract 920 from 1200, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 15:
If we divide 2800 by 920, we get 3 and a remainder of 40.
Write down 3 as next digit of the result. 
Result so far: 23416.3923913
The remainder is 40 after subtracting 2760 from 2800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Advancing to step 16:
400 divided by 920 is 0 with a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 23416.3923913
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

In conclusion, the division gives 23416.3923913 with a balance of 4e-07.