We look at the division of 84387178 by 804 
We want to divide 84387178 by 804.

Step 1:
When dividing 8 by 804, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (4) from the dividend, attach it to 8 and continue: 84 / 804

Advancing to step 2:
804 goes into 84 0 times with a remainder of 84.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 84 after subtracting 0 from 84.
Fetch the next digit (3) from the dividend, attach it to 84 and continue: 843 / 804

Step 3:
The number 804 fits into 843 1 times, leaving a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 804 from 843 and we're left with 39.
Fetch the next digit (8) from the dividend, attach it to 39 and continue: 398 / 804

Step 4:
804 can be fit into 398 0 times, resulting in a remainder of 398.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtract 0 from 398 to get 398.
Fetch the next digit (7) from the dividend, attach it to 398 and continue: 3987 / 804

Moving on to step 5:
When dividing 3987 by 804, we get 4 with a remainder of 771.
Put 4 as the next digit of the answer. 
Result so far: 104.0
If we subtract 3216 from 3987, we get 771.
Fetch the next digit (1) from the dividend, attach it to 771 and continue: 7711 / 804

Advancing to step 6:
7711 divided by 804 is 9 with a remainder of 475.
The number 9 becomes the next digit in our result. 
Result so far: 1049.0
The remainder is 475 after subtracting 7236 from 7711.
Append the next digit (7) from the dividend to 475 and continue with: 4757 / 804

Moving on to step 7:
804 can be fit into 4757 5 times, resulting in a remainder of 737.
The next digit of our result is 5. 
Result so far: 10495.0
If we take 4020 away from 4757, we end up with 737.
Grab the next digit (8) from the dividend, add it to 737, then carry on: 7378 / 804

Going ahead to step 8:
7378 divided by 804 is 9 with a remainder of 142.
Record the quotient 9 as the next digit in the result. 
Result so far: 104959.0
Subtracting 7236 from 7378 leaves us with 142.
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 9:
804 goes into 1420 1 times with a remainder of 616.
The number 1 becomes the next digit in our result. 
Result so far: 104959.1
Subtracting 804 from 1420 leaves us with 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Moving on to step 10:
6160 divided by 804 is 7 with a remainder of 532.
Write down 7 as next digit of the result. 
Result so far: 104959.17
If we subtract 5628 from 6160, we get 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Advancing to step 11:
804 can be fit into 5320 6 times, resulting in a remainder of 496.
Use 6 as the next digit of our solution. 
Result so far: 104959.176
Subtract 4824 from 5320 to get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Let's proceed to step 12:
The number 804 fits into 4960 6 times, leaving a remainder of 136.
The next digit of our result is 6. 
Result so far: 104959.1766
Subtracting 4824 from 4960 leaves us with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

The quotient of the division is 104959.1766, and the remainder is 0.00136.