We look at the division of 9909884 by 804 
We're looking to find how many times 804 goes into 9909884.

On to step 1:
804 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 804

Advancing to step 2:
If we divide 99 by 804, we get 0 and a remainder of 99.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 99 to get 99.
Grab the next digit (0) from the dividend, add it to 99, then carry on: 990 / 804

On to step 3:
When dividing 990 by 804, we get 1 with a remainder of 186.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 804 from 990, we get 186.
Grab the next digit (9) from the dividend, add it to 186, then carry on: 1869 / 804

Advancing to step 4:
804 goes into 1869 2 times with a remainder of 261.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 1608 from 1869 to get 261.
Append the next digit (8) from the dividend to 261 and continue with: 2618 / 804

On to step 5:
804 goes into 2618 3 times with a remainder of 206.
Put 3 as the next digit of the answer. 
Result so far: 123.0
Deduct 2412 from 2618 and we're left with 206.
Grab the next digit (8) from the dividend, add it to 206, then carry on: 2068 / 804

Advancing to step 6:
When dividing 2068 by 804, we get 2 with a remainder of 460.
The number 2 becomes the next digit in our result. 
Result so far: 1232.0
Subtract 1608 from 2068 to get 460.
Fetch the next digit (4) from the dividend, attach it to 460 and continue: 4604 / 804

Advancing to step 7:
804 can be fit into 4604 5 times, resulting in a remainder of 584.
Put 5 as the next digit of the answer. 
Result so far: 12325.0
Subtract 4020 from 4604 to get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Moving on to step 8:
804 can be fit into 5840 7 times, resulting in a remainder of 212.
Record the quotient 7 as the next digit in the result. 
Result so far: 12325.7
If we take 5628 away from 5840, we end up with 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Step 9:
804 can be fit into 2120 2 times, resulting in a remainder of 512.
Record the quotient 2 as the next digit in the result. 
Result so far: 12325.72
Subtract 1608 from 2120 to get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

On to step 10:
The number 804 fits into 5120 6 times, leaving a remainder of 296.
Put 6 as the next digit of the answer. 
Result so far: 12325.726
The remainder is 296 after subtracting 4824 from 5120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

On to step 11:
804 goes into 2960 3 times with a remainder of 548.
Use 3 as the next digit of our solution. 
Result so far: 12325.7263
Subtract 2412 from 2960 to get 548.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5480, and continue the process.

Moving on to step 12:
804 goes into 5480 6 times with a remainder of 656.
Write down 6 as next digit of the result. 
Result so far: 12325.72636
Deduct 4824 from 5480 and we're left with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Let's proceed to step 13:
804 can be fit into 6560 8 times, resulting in a remainder of 128.
Use 8 as the next digit of our solution. 
Result so far: 12325.726368
Deduct 6432 from 6560 and we're left with 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Moving on to step 14:
804 can be fit into 1280 1 times, resulting in a remainder of 476.
The number 1 becomes the next digit in our result. 
Result so far: 12325.7263681
Deduct 804 from 1280 and we're left with 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Step 15:
The number 804 fits into 4760 5 times, leaving a remainder of 740.
The number 5 becomes the next digit in our result. 
Result so far: 12325.72636815
Subtracting 4020 from 4760 leaves us with 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

The final outcome is 12325.72636815, with a leftover of 7.4e-07.