11639823 ÷ 820 
Let's see how many times 820 fits into 11639823.

Going ahead to step 1:
1 divided by 820 is 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 820

Moving on to step 2:
The number 820 fits into 11 0 times, leaving a remainder of 11.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 11 to get 11.
Bring next digit (6) of the dividend behind the 11 and repeat the process: 116 / 820

Going ahead to step 3:
116 divided by 820 is 0 with a remainder of 116.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 116 to get 116.
Append the next digit (3) from the dividend to 116 and continue with: 1163 / 820

On to step 4:
When dividing 1163 by 820, we get 1 with a remainder of 343.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 820 from 1163 leaves us with 343.
Include the next digit (9) from the dividend after 343, then repeat: 3439 / 820

Going ahead to step 5:
3439 divided by 820 is 4 with a remainder of 159.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 3280 away from 3439, we end up with 159.
Append the next digit (8) from the dividend to 159 and continue with: 1598 / 820

On to step 6:
The number 820 fits into 1598 1 times, leaving a remainder of 778.
Write down 1 as next digit of the result. 
Result so far: 141.0
Subtract 820 from 1598 to get 778.
Grab the next digit (2) from the dividend, add it to 778, then carry on: 7782 / 820

Let's proceed to step 7:
The number 820 fits into 7782 9 times, leaving a remainder of 402.
The next digit of our result is 9. 
Result so far: 1419.0
The remainder is 402 after subtracting 7380 from 7782.
Append the next digit (3) from the dividend to 402 and continue with: 4023 / 820

Going ahead to step 8:
820 goes into 4023 4 times with a remainder of 743.
Write down 4 as next digit of the result. 
Result so far: 14194.0
The remainder is 743 after subtracting 3280 from 4023.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7430, and continue the process.

Going ahead to step 9:
When dividing 7430 by 820, we get 9 with a remainder of 50.
Record the quotient 9 as the next digit in the result. 
Result so far: 14194.9
The remainder is 50 after subtracting 7380 from 7430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 10:
When dividing 500 by 820, we get 0 with a remainder of 500.
Write down 0 as next digit of the result. 
Result so far: 14194.9
If we take 0 away from 500, we end up with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

On to step 11:
The number 820 fits into 5000 6 times, leaving a remainder of 80.
Use 6 as the next digit of our solution. 
Result so far: 14194.906
Subtract 4920 from 5000 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 12:
When dividing 800 by 820, we get 0 with a remainder of 800.
The next digit of our result is 0. 
Result so far: 14194.906
Subtract 0 from 800 to get 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

Moving on to step 13:
When dividing 8000 by 820, we get 9 with a remainder of 620.
Use 9 as the next digit of our solution. 
Result so far: 14194.90609
Subtracting 7380 from 8000 leaves us with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

On to step 14:
The number 820 fits into 6200 7 times, leaving a remainder of 460.
Write down 7 as next digit of the result. 
Result so far: 14194.906097
Deduct 5740 from 6200 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Advancing to step 15:
When dividing 4600 by 820, we get 5 with a remainder of 500.
Record the quotient 5 as the next digit in the result. 
Result so far: 14194.9060975
Subtracting 4100 from 4600 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Advancing to step 16:
If we divide 5000 by 820, we get 6 and a remainder of 80.
The number 6 becomes the next digit in our result. 
Result so far: 14194.90609756
Deduct 4920 from 5000 and we're left with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final outcome is 14194.90609756, with a leftover of 8e-08.