We look at the division of 21440877 by 837 
Let's see how many times 837 fits into 21440877.

Step 1:
When dividing 2 by 837, we get 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 837

Step 2:
837 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
If we take 0 away from 21, we end up with 21.
Bring next digit (4) of the dividend behind the 21 and repeat the process: 214 / 837

Advancing to step 3:
The number 837 fits into 214 0 times, leaving a remainder of 214.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 214 to get 214.
Bring next digit (4) of the dividend behind the 214 and repeat the process: 2144 / 837

Let's proceed to step 4:
If we divide 2144 by 837, we get 2 and a remainder of 470.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 470 after subtracting 1674 from 2144.
Include the next digit (0) from the dividend after 470, then repeat: 4700 / 837

Advancing to step 5:
When dividing 4700 by 837, we get 5 with a remainder of 515.
Use 5 as the next digit of our solution. 
Result so far: 25.0
Subtract 4185 from 4700 to get 515.
Take the next digit (8) from the dividend and append it to 515, then repeat: 5158 / 837

Moving on to step 6:
5158 divided by 837 is 6 with a remainder of 136.
The next digit of our result is 6. 
Result so far: 256.0
If we take 5022 away from 5158, we end up with 136.
Include the next digit (7) from the dividend after 136, then repeat: 1367 / 837

Going ahead to step 7:
If we divide 1367 by 837, we get 1 and a remainder of 530.
Write down 1 as next digit of the result. 
Result so far: 2561.0
If we take 837 away from 1367, we end up with 530.
Fetch the next digit (7) from the dividend, attach it to 530 and continue: 5307 / 837

Advancing to step 8:
When dividing 5307 by 837, we get 6 with a remainder of 285.
Use 6 as the next digit of our solution. 
Result so far: 25616.0
If we take 5022 away from 5307, we end up with 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

Moving on to step 9:
2850 divided by 837 is 3 with a remainder of 339.
Write down 3 as next digit of the result. 
Result so far: 25616.3
If we take 2511 away from 2850, we end up with 339.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3390, and continue the process.

Moving on to step 10:
If we divide 3390 by 837, we get 4 and a remainder of 42.
Use 4 as the next digit of our solution. 
Result so far: 25616.34
If we take 3348 away from 3390, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Let's proceed to step 11:
420 divided by 837 is 0 with a remainder of 420.
The next digit of our result is 0. 
Result so far: 25616.34
Subtracting 0 from 420 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 12:
The number 837 fits into 4200 5 times, leaving a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 25616.3405
Subtract 4185 from 4200 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Advancing to step 13:
837 can be fit into 150 0 times, resulting in a remainder of 150.
The next digit of our result is 0. 
Result so far: 25616.3405
Subtract 0 from 150 to get 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 14:
837 goes into 1500 1 times with a remainder of 663.
Put 1 as the next digit of the answer. 
Result so far: 25616.340501
If we subtract 837 from 1500, we get 663.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6630, and continue the process.

Let's proceed to step 15:
If we divide 6630 by 837, we get 7 and a remainder of 771.
Write down 7 as next digit of the result. 
Result so far: 25616.3405017
The remainder is 771 after subtracting 5859 from 6630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7710, and continue the process.

On to step 16:
The number 837 fits into 7710 9 times, leaving a remainder of 177.
Write down 9 as next digit of the result. 
Result so far: 25616.34050179
Deduct 7533 from 7710 and we're left with 177.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1770, and continue the process.

After the division, we end up with 25616.34050179 and a remainder of 1.77e-07.