We look at the division of 83111311 by 821 
Let's see how many times 821 fits into 83111311.

Advancing to step 1:
821 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 821

Advancing to step 2:
The number 821 fits into 83 0 times, leaving a remainder of 83.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 83 to get 83.
Include the next digit (1) from the dividend after 83, then repeat: 831 / 821

Let's proceed to step 3:
When dividing 831 by 821, we get 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 821 from 831 to get 10.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 821

Going ahead to step 4:
821 goes into 101 0 times with a remainder of 101.
The next digit of our result is 0. 
Result so far: 10.0
The remainder is 101 after subtracting 0 from 101.
Bring next digit (1) of the dividend behind the 101 and repeat the process: 1011 / 821

Going ahead to step 5:
1011 divided by 821 is 1 with a remainder of 190.
Put 1 as the next digit of the answer. 
Result so far: 101.0
Subtract 821 from 1011 to get 190.
Append the next digit (3) from the dividend to 190 and continue with: 1903 / 821

Moving on to step 6:
1903 divided by 821 is 2 with a remainder of 261.
Write down 2 as next digit of the result. 
Result so far: 1012.0
The remainder is 261 after subtracting 1642 from 1903.
Bring next digit (1) of the dividend behind the 261 and repeat the process: 2611 / 821

Step 7:
821 can be fit into 2611 3 times, resulting in a remainder of 148.
Use 3 as the next digit of our solution. 
Result so far: 10123.0
Deduct 2463 from 2611 and we're left with 148.
Include the next digit (1) from the dividend after 148, then repeat: 1481 / 821

Let's proceed to step 8:
The number 821 fits into 1481 1 times, leaving a remainder of 660.
Put 1 as the next digit of the answer. 
Result so far: 101231.0
The remainder is 660 after subtracting 821 from 1481.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6600, and continue the process.

Advancing to step 9:
When dividing 6600 by 821, we get 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 101231.8
Subtract 6568 from 6600 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 10:
821 goes into 320 0 times with a remainder of 320.
The next digit of our result is 0. 
Result so far: 101231.8
If we subtract 0 from 320, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 11:
If we divide 3200 by 821, we get 3 and a remainder of 737.
Use 3 as the next digit of our solution. 
Result so far: 101231.803
Subtracting 2463 from 3200 leaves us with 737.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7370, and continue the process.

Going ahead to step 12:
The number 821 fits into 7370 8 times, leaving a remainder of 802.
Put 8 as the next digit of the answer. 
Result so far: 101231.8038
Subtract 6568 from 7370 to get 802.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8020, and continue the process.

Step 13:
821 goes into 8020 9 times with a remainder of 631.
Record the quotient 9 as the next digit in the result. 
Result so far: 101231.80389
Deduct 7389 from 8020 and we're left with 631.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6310, and continue the process.

Step 14:
When dividing 6310 by 821, we get 7 with a remainder of 563.
Use 7 as the next digit of our solution. 
Result so far: 101231.803897
Subtract 5747 from 6310 to get 563.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5630, and continue the process.

Advancing to step 15:
821 goes into 5630 6 times with a remainder of 704.
Put 6 as the next digit of the answer. 
Result so far: 101231.8038976
If we subtract 4926 from 5630, we get 704.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7040, and continue the process.

Advancing to step 16:
821 can be fit into 7040 8 times, resulting in a remainder of 472.
Record the quotient 8 as the next digit in the result. 
Result so far: 101231.80389768
If we take 6568 away from 7040, we end up with 472.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

After the division, we end up with 101231.80389768 and a remainder of 4.72e-07.