We're dividing 815428 by 80 
Let's see how many times 80 fits into 815428.

Let's proceed to step 1:
80 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 80

Advancing to step 2:
80 goes into 81 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 80 from 81 leaves us with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 80

Step 3:
80 goes into 15 0 times with a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtract 0 from 15 to get 15.
Include the next digit (4) from the dividend after 15, then repeat: 154 / 80

Going ahead to step 4:
80 goes into 154 1 times with a remainder of 74.
Put 1 as the next digit of the answer. 
Result so far: 101.0
Subtract 80 from 154 to get 74.
Take the next digit (2) from the dividend and append it to 74, then repeat: 742 / 80

On to step 5:
80 goes into 742 9 times with a remainder of 22.
The number 9 becomes the next digit in our result. 
Result so far: 1019.0
Deduct 720 from 742 and we're left with 22.
Fetch the next digit (8) from the dividend, attach it to 22 and continue: 228 / 80

Advancing to step 6:
80 goes into 228 2 times with a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 10192.0
If we take 160 away from 228, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

On to step 7:
80 goes into 680 8 times with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 10192.8
Subtract 640 from 680 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
The number 80 fits into 400 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 10192.85
If we subtract 400 from 400, 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.

Advancing to step 9:
80 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 10192.85
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.

Going ahead to step 10:
0 divided by 80 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 10192.85
Subtracting 0 from 0 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.

After the division, we end up with 10192.85 and a remainder of 0.0.