We look at the division of 21310399 by 277 
We want to divide 21310399 by 277.

On to step 1:
277 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 277

Step 2:
When dividing 21 by 277, we get 0 with a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Fetch the next digit (3) from the dividend, attach it to 21 and continue: 213 / 277

Let's proceed to step 3:
277 can be fit into 213 0 times, resulting in a remainder of 213.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 213, we get 213.
Include the next digit (1) from the dividend after 213, then repeat: 2131 / 277

Step 4:
277 can be fit into 2131 7 times, resulting in a remainder of 192.
The next digit of our result is 7. 
Result so far: 7.0
Subtracting 1939 from 2131 leaves us with 192.
Include the next digit (0) from the dividend after 192, then repeat: 1920 / 277

Step 5:
If we divide 1920 by 277, we get 6 and a remainder of 258.
Use 6 as the next digit of our solution. 
Result so far: 76.0
Subtract 1662 from 1920 to get 258.
Bring next digit (3) of the dividend behind the 258 and repeat the process: 2583 / 277

Going ahead to step 6:
277 can be fit into 2583 9 times, resulting in a remainder of 90.
Record the quotient 9 as the next digit in the result. 
Result so far: 769.0
The remainder is 90 after subtracting 2493 from 2583.
Append the next digit (9) from the dividend to 90 and continue with: 909 / 277

Going ahead to step 7:
The number 277 fits into 909 3 times, leaving a remainder of 78.
Use 3 as the next digit of our solution. 
Result so far: 7693.0
If we subtract 831 from 909, we get 78.
Take the next digit (9) from the dividend and append it to 78, then repeat: 789 / 277

On to step 8:
277 goes into 789 2 times with a remainder of 235.
Write down 2 as next digit of the result. 
Result so far: 76932.0
Subtract 554 from 789 to get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 9:
277 can be fit into 2350 8 times, resulting in a remainder of 134.
Write down 8 as next digit of the result. 
Result so far: 76932.8
Subtracting 2216 from 2350 leaves us with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Moving on to step 10:
The number 277 fits into 1340 4 times, leaving a remainder of 232.
Write down 4 as next digit of the result. 
Result so far: 76932.84
Subtracting 1108 from 1340 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 11:
2320 divided by 277 is 8 with a remainder of 104.
Write down 8 as next digit of the result. 
Result so far: 76932.848
Subtract 2216 from 2320 to get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 12:
The number 277 fits into 1040 3 times, leaving a remainder of 209.
The next digit of our result is 3. 
Result so far: 76932.8483
Subtracting 831 from 1040 leaves us with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Let's proceed to step 13:
2090 divided by 277 is 7 with a remainder of 151.
The number 7 becomes the next digit in our result. 
Result so far: 76932.84837
Subtracting 1939 from 2090 leaves us with 151.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1510, and continue the process.

Let's proceed to step 14:
1510 divided by 277 is 5 with a remainder of 125.
The next digit of our result is 5. 
Result so far: 76932.848375
If we subtract 1385 from 1510, we get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Step 15:
1250 divided by 277 is 4 with a remainder of 142.
The number 4 becomes the next digit in our result. 
Result so far: 76932.8483754
The remainder is 142 after subtracting 1108 from 1250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Going ahead to step 16:
If we divide 1420 by 277, we get 5 and a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 76932.84837545
The remainder is 35 after subtracting 1385 from 1420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Our division results in 76932.84837545 with a remaining 3.5e-08.