21331253 ÷ 862 
We're looking to find how many times 862 goes into 21331253.

Going ahead to step 1:
2 divided by 862 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 862

Moving on to step 2:
The number 862 fits into 21 0 times, leaving a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Include the next digit (3) from the dividend after 21, then repeat: 213 / 862

Let's proceed to step 3:
If we divide 213 by 862, we get 0 and a remainder of 213.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 213, we end up with 213.
Include the next digit (3) from the dividend after 213, then repeat: 2133 / 862

Advancing to step 4:
2133 divided by 862 is 2 with a remainder of 409.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 1724 from 2133 and we're left with 409.
Include the next digit (1) from the dividend after 409, then repeat: 4091 / 862

Going ahead to step 5:
862 can be fit into 4091 4 times, resulting in a remainder of 643.
Put 4 as the next digit of the answer. 
Result so far: 24.0
If we take 3448 away from 4091, we end up with 643.
Append the next digit (2) from the dividend to 643 and continue with: 6432 / 862

Advancing to step 6:
862 can be fit into 6432 7 times, resulting in a remainder of 398.
Put 7 as the next digit of the answer. 
Result so far: 247.0
Subtracting 6034 from 6432 leaves us with 398.
Include the next digit (5) from the dividend after 398, then repeat: 3985 / 862

Moving on to step 7:
If we divide 3985 by 862, we get 4 and a remainder of 537.
The number 4 becomes the next digit in our result. 
Result so far: 2474.0
Subtracting 3448 from 3985 leaves us with 537.
Grab the next digit (3) from the dividend, add it to 537, then carry on: 5373 / 862

On to step 8:
If we divide 5373 by 862, we get 6 and a remainder of 201.
The next digit of our result is 6. 
Result so far: 24746.0
Subtracting 5172 from 5373 leaves us with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Going ahead to step 9:
The number 862 fits into 2010 2 times, leaving a remainder of 286.
Record the quotient 2 as the next digit in the result. 
Result so far: 24746.2
Subtracting 1724 from 2010 leaves us with 286.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2860, and continue the process.

Step 10:
When dividing 2860 by 862, we get 3 with a remainder of 274.
The number 3 becomes the next digit in our result. 
Result so far: 24746.23
If we take 2586 away from 2860, we end up with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

On to step 11:
If we divide 2740 by 862, we get 3 and a remainder of 154.
The next digit of our result is 3. 
Result so far: 24746.233
If we take 2586 away from 2740, we end up with 154.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1540, and continue the process.

The final result is 24746.233 with a remainder of 0.0154.