We're dividing 8099919 by 820 
We want to figure out the number of times 8099919 can be divided by 820.

On to step 1:
The number 820 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 820

Advancing to step 2:
820 can be fit into 80 0 times, resulting in a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Take the next digit (9) from the dividend and append it to 80, then repeat: 809 / 820

Step 3:
820 goes into 809 0 times with a remainder of 809.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 809 leaves us with 809.
Include the next digit (9) from the dividend after 809, then repeat: 8099 / 820

Step 4:
When dividing 8099 by 820, we get 9 with a remainder of 719.
The next digit of our result is 9. 
Result so far: 9.0
If we take 7380 away from 8099, we end up with 719.
Take the next digit (9) from the dividend and append it to 719, then repeat: 7199 / 820

On to step 5:
820 can be fit into 7199 8 times, resulting in a remainder of 639.
Record the quotient 8 as the next digit in the result. 
Result so far: 98.0
If we subtract 6560 from 7199, we get 639.
Include the next digit (1) from the dividend after 639, then repeat: 6391 / 820

Going ahead to step 6:
When dividing 6391 by 820, we get 7 with a remainder of 651.
The number 7 becomes the next digit in our result. 
Result so far: 987.0
The remainder is 651 after subtracting 5740 from 6391.
Fetch the next digit (9) from the dividend, attach it to 651 and continue: 6519 / 820

Step 7:
When dividing 6519 by 820, we get 7 with a remainder of 779.
The number 7 becomes the next digit in our result. 
Result so far: 9877.0
If we take 5740 away from 6519, we end up with 779.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7790, and continue the process.

On to step 8:
When dividing 7790 by 820, we get 9 with a remainder of 410.
Write down 9 as next digit of the result. 
Result so far: 9877.9
If we subtract 7380 from 7790, we get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Going ahead to step 9:
820 goes into 4100 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 9877.95
Subtracting 4100 from 4100 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
The number 820 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 9877.95
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 11:
The number 820 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 9877.95
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 9877.95 with a remainder of 0.0.