Let's divide 21140892 by 815
We're looking to find how many times 815 goes into 21140892.

Advancing to step 1:
When dividing 2 by 815, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 815

Step 2:
815 goes into 21 0 times with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 21, we get 21.
Include the next digit (1) from the dividend after 21, then repeat: 211 / 815

Going ahead to step 3:
815 goes into 211 0 times with a remainder of 211.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 211, we get 211.
Append the next digit (4) from the dividend to 211 and continue with: 2114 / 815

On to step 4:
815 goes into 2114 2 times with a remainder of 484.
The next digit of our result is 2. 
Result so far: 2.0
If we take 1630 away from 2114, we end up with 484.
Fetch the next digit (0) from the dividend, attach it to 484 and continue: 4840 / 815

Let's proceed to step 5:
When dividing 4840 by 815, we get 5 with a remainder of 765.
Write down 5 as next digit of the result. 
Result so far: 25.0
Deduct 4075 from 4840 and we're left with 765.
Fetch the next digit (8) from the dividend, attach it to 765 and continue: 7658 / 815

On to step 6:
815 can be fit into 7658 9 times, resulting in a remainder of 323.
Write down 9 as next digit of the result. 
Result so far: 259.0
Subtract 7335 from 7658 to get 323.
Take the next digit (9) from the dividend and append it to 323, then repeat: 3239 / 815

Going ahead to step 7:
815 can be fit into 3239 3 times, resulting in a remainder of 794.
Write down 3 as next digit of the result. 
Result so far: 2593.0
Subtract 2445 from 3239 to get 794.
Bring next digit (2) of the dividend behind the 794 and repeat the process: 7942 / 815

Advancing to step 8:
815 can be fit into 7942 9 times, resulting in a remainder of 607.
The next digit of our result is 9. 
Result so far: 25939.0
Deduct 7335 from 7942 and we're left with 607.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6070, and continue the process.

Step 9:
815 goes into 6070 7 times with a remainder of 365.
Record the quotient 7 as the next digit in the result. 
Result so far: 25939.7
If we take 5705 away from 6070, we end up with 365.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3650, and continue the process.

Let's proceed to step 10:
When dividing 3650 by 815, we get 4 with a remainder of 390.
Put 4 as the next digit of the answer. 
Result so far: 25939.74
The remainder is 390 after subtracting 3260 from 3650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3900, and continue the process.

Let's proceed to step 11:
815 goes into 3900 4 times with a remainder of 640.
Write down 4 as next digit of the result. 
Result so far: 25939.744
If we take 3260 away from 3900, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

The quotient of the division is 25939.744, and the remainder is 0.064.