We look at the division of 8085797 by 578 
Let's see how many times 578 fits into 8085797.

On to step 1:
The number 578 fits into 8 0 times, leaving a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 578

On to step 2:
If we divide 80 by 578, we get 0 and a remainder of 80.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Include the next digit (8) from the dividend after 80, then repeat: 808 / 578

Let's proceed to step 3:
808 divided by 578 is 1 with a remainder of 230.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 578 away from 808, we end up with 230.
Take the next digit (5) from the dividend and append it to 230, then repeat: 2305 / 578

Advancing to step 4:
2305 divided by 578 is 3 with a remainder of 571.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtracting 1734 from 2305 leaves us with 571.
Include the next digit (7) from the dividend after 571, then repeat: 5717 / 578

On to step 5:
The number 578 fits into 5717 9 times, leaving a remainder of 515.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
If we take 5202 away from 5717, we end up with 515.
Append the next digit (9) from the dividend to 515 and continue with: 5159 / 578

Advancing to step 6:
578 can be fit into 5159 8 times, resulting in a remainder of 535.
The number 8 becomes the next digit in our result. 
Result so far: 1398.0
Subtract 4624 from 5159 to get 535.
Grab the next digit (7) from the dividend, add it to 535, then carry on: 5357 / 578

Moving on to step 7:
When dividing 5357 by 578, we get 9 with a remainder of 155.
Put 9 as the next digit of the answer. 
Result so far: 13989.0
Subtracting 5202 from 5357 leaves us with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Going ahead to step 8:
578 goes into 1550 2 times with a remainder of 394.
Write down 2 as next digit of the result. 
Result so far: 13989.2
The remainder is 394 after subtracting 1156 from 1550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Step 9:
The number 578 fits into 3940 6 times, leaving a remainder of 472.
Use 6 as the next digit of our solution. 
Result so far: 13989.26
The remainder is 472 after subtracting 3468 from 3940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4720, and continue the process.

Step 10:
578 can be fit into 4720 8 times, resulting in a remainder of 96.
Record the quotient 8 as the next digit in the result. 
Result so far: 13989.268
If we subtract 4624 from 4720, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 11:
578 goes into 960 1 times with a remainder of 382.
The next digit of our result is 1. 
Result so far: 13989.2681
Deduct 578 from 960 and we're left with 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Moving on to step 12:
3820 divided by 578 is 6 with a remainder of 352.
The number 6 becomes the next digit in our result. 
Result so far: 13989.26816
If we subtract 3468 from 3820, we get 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Going ahead to step 13:
The number 578 fits into 3520 6 times, leaving a remainder of 52.
The next digit of our result is 6. 
Result so far: 13989.268166
If we subtract 3468 from 3520, we 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.

The quotient of the division is 13989.268166, and the remainder is 5.2e-06.