We're dividing 819252 by 80 
We want to figure out the number of times 819252 can be divided by 80.

Step 1:
80 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 80

On to step 2:
80 goes into 81 1 times with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 80 away from 81, we end up with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 80

On to step 3:
80 goes into 19 0 times with a remainder of 19.
The number 0 becomes the next digit in our result. 
Result so far: 10.0
If we subtract 0 from 19, we get 19.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 80

Advancing to step 4:
If we divide 192 by 80, we get 2 and a remainder of 32.
Put 2 as the next digit of the answer. 
Result so far: 102.0
Deduct 160 from 192 and we're left with 32.
Grab the next digit (5) from the dividend, add it to 32, then carry on: 325 / 80

Going ahead to step 5:
If we divide 325 by 80, we get 4 and a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 1024.0
Deduct 320 from 325 and we're left with 5.
Bring next digit (2) of the dividend behind the 5 and repeat the process: 52 / 80

Advancing to step 6:
If we divide 52 by 80, we get 0 and a remainder of 52.
Record the quotient 0 as the next digit in the result. 
Result so far: 10240.0
Subtract 0 from 52 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Going ahead to step 7:
80 can be fit into 520 6 times, resulting in a remainder of 40.
Record the quotient 6 as the next digit in the result. 
Result so far: 10240.6
Deduct 480 from 520 and we're left with 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:
80 goes into 400 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 10240.65
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.

Step 9:
80 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10240.65
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.

Going ahead to step 10:
0 divided by 80 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10240.65
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.

The final result is 10240.65 with a remainder of 0.0.