We look at the division of 819520 by 39 
Let's see how many times 39 fits into 819520.

Step 1:
If we divide 8 by 39, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 39

On to step 2:
39 goes into 81 2 times with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 2.0
If we take 78 away from 81, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 39

Advancing to step 3:
The number 39 fits into 39 1 times, leaving a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 21.0
Deduct 39 from 39 and we're left with 0.
Take the next digit (5) from the dividend and append it to 0, then repeat: 5 / 39

Let's proceed to step 4:
39 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 210.0
If we subtract 0 from 5, we get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 39

Step 5:
When dividing 52 by 39, we get 1 with a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 2101.0
If we take 39 away from 52, we end up with 13.
Include the next digit (0) from the dividend after 13, then repeat: 130 / 39

Going ahead to step 6:
If we divide 130 by 39, we get 3 and a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 21013.0
Subtracting 117 from 130 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
If we divide 130 by 39, we get 3 and a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 21013.3
If we subtract 117 from 130, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 8:
If we divide 130 by 39, we get 3 and a remainder of 13.
Put 3 as the next digit of the answer. 
Result so far: 21013.33
The remainder is 13 after subtracting 117 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

The final outcome is 21013.33, with a leftover of 0.013.