We look at the division of 78752379 by 520 
Let's see how many times 520 fits into 78752379.

On to step 1:
When dividing 7 by 520, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 520

Advancing to step 2:
If we divide 78 by 520, we get 0 and a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 78, we end up with 78.
Include the next digit (7) from the dividend after 78, then repeat: 787 / 520

Step 3:
520 can be fit into 787 1 times, resulting in a remainder of 267.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 520 from 787, we get 267.
Append the next digit (5) from the dividend to 267 and continue with: 2675 / 520

Advancing to step 4:
2675 divided by 520 is 5 with a remainder of 75.
Use 5 as the next digit of our solution. 
Result so far: 15.0
The remainder is 75 after subtracting 2600 from 2675.
Bring next digit (2) of the dividend behind the 75 and repeat the process: 752 / 520

Step 5:
When dividing 752 by 520, we get 1 with a remainder of 232.
Use 1 as the next digit of our solution. 
Result so far: 151.0
The remainder is 232 after subtracting 520 from 752.
Append the next digit (3) from the dividend to 232 and continue with: 2323 / 520

On to step 6:
520 goes into 2323 4 times with a remainder of 243.
Put 4 as the next digit of the answer. 
Result so far: 1514.0
Subtracting 2080 from 2323 leaves us with 243.
Take the next digit (7) from the dividend and append it to 243, then repeat: 2437 / 520

Let's proceed to step 7:
When dividing 2437 by 520, we get 4 with a remainder of 357.
The next digit of our result is 4. 
Result so far: 15144.0
Subtract 2080 from 2437 to get 357.
Fetch the next digit (9) from the dividend, attach it to 357 and continue: 3579 / 520

Let's proceed to step 8:
The number 520 fits into 3579 6 times, leaving a remainder of 459.
Use 6 as the next digit of our solution. 
Result so far: 151446.0
If we subtract 3120 from 3579, we get 459.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4590, and continue the process.

Let's proceed to step 9:
4590 divided by 520 is 8 with a remainder of 430.
Use 8 as the next digit of our solution. 
Result so far: 151446.8
Deduct 4160 from 4590 and we're left with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 10:
When dividing 4300 by 520, we get 8 with a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 151446.88
If we take 4160 away from 4300, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The final outcome is 151446.88, with a leftover of 0.14.