We look at the division of 80518183 by 804 
We want to figure out the number of times 80518183 can be divided by 804.

Step 1:
804 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 804

Advancing to step 2:
The number 804 fits into 80 0 times, leaving a remainder of 80.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Fetch the next digit (5) from the dividend, attach it to 80 and continue: 805 / 804

Advancing to step 3:
804 goes into 805 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 804 from 805 leaves us with 1.
Fetch the next digit (1) from the dividend, attach it to 1 and continue: 11 / 804

Going ahead to step 4:
If we divide 11 by 804, we get 0 and a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 11 after subtracting 0 from 11.
Append the next digit (8) from the dividend to 11 and continue with: 118 / 804

Let's proceed to step 5:
804 goes into 118 0 times with a remainder of 118.
Write down 0 as next digit of the result. 
Result so far: 100.0
If we take 0 away from 118, we end up with 118.
Grab the next digit (1) from the dividend, add it to 118, then carry on: 1181 / 804

Let's proceed to step 6:
If we divide 1181 by 804, we get 1 and a remainder of 377.
The number 1 becomes the next digit in our result. 
Result so far: 1001.0
If we subtract 804 from 1181, we get 377.
Fetch the next digit (8) from the dividend, attach it to 377 and continue: 3778 / 804

Let's proceed to step 7:
The number 804 fits into 3778 4 times, leaving a remainder of 562.
Put 4 as the next digit of the answer. 
Result so far: 10014.0
If we subtract 3216 from 3778, we get 562.
Append the next digit (3) from the dividend to 562 and continue with: 5623 / 804

On to step 8:
The number 804 fits into 5623 6 times, leaving a remainder of 799.
Put 6 as the next digit of the answer. 
Result so far: 100146.0
Subtract 4824 from 5623 to get 799.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7990, and continue the process.

Step 9:
804 goes into 7990 9 times with a remainder of 754.
The next digit of our result is 9. 
Result so far: 100146.9
If we take 7236 away from 7990, we end up with 754.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7540, and continue the process.

On to step 10:
When dividing 7540 by 804, we get 9 with a remainder of 304.
Use 9 as the next digit of our solution. 
Result so far: 100146.99
Subtracting 7236 from 7540 leaves us with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Our division results in 100146.99 with a remaining 0.304.