78130012 divided by 520 
Our goal is to divide 78130012 by 520.

Going ahead to step 1:
520 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Fetch the next digit (8) from the dividend, attach it to 7 and continue: 78 / 520

Moving on to step 2:
The number 520 fits into 78 0 times, leaving a remainder of 78.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Grab the next digit (1) from the dividend, add it to 78, then carry on: 781 / 520

Moving on to step 3:
781 divided by 520 is 1 with a remainder of 261.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 520 away from 781, we end up with 261.
Bring next digit (3) of the dividend behind the 261 and repeat the process: 2613 / 520

On to step 4:
520 can be fit into 2613 5 times, resulting in a remainder of 13.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
If we subtract 2600 from 2613, we get 13.
Append the next digit (0) from the dividend to 13 and continue with: 130 / 520

Step 5:
When dividing 130 by 520, we get 0 with a remainder of 130.
Write down 0 as next digit of the result. 
Result so far: 150.0
Subtract 0 from 130 to get 130.
Grab the next digit (0) from the dividend, add it to 130, then carry on: 1300 / 520

Step 6:
When dividing 1300 by 520, we get 2 with a remainder of 260.
Use 2 as the next digit of our solution. 
Result so far: 1502.0
The remainder is 260 after subtracting 1040 from 1300.
Include the next digit (1) from the dividend after 260, then repeat: 2601 / 520

Advancing to step 7:
2601 divided by 520 is 5 with a remainder of 1.
Put 5 as the next digit of the answer. 
Result so far: 15025.0
If we subtract 2600 from 2601, we get 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 520

Step 8:
The number 520 fits into 12 0 times, leaving a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 150250.0
Subtract 0 from 12 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
The number 520 fits into 120 0 times, leaving a remainder of 120.
The next digit of our result is 0. 
Result so far: 150250.0
If we take 0 away from 120, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Moving on to step 10:
520 goes into 1200 2 times with a remainder of 160.
Write down 2 as next digit of the result. 
Result so far: 150250.02
Subtract 1040 from 1200 to get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 11:
When dividing 1600 by 520, we get 3 with a remainder of 40.
Record the quotient 3 as the next digit in the result. 
Result so far: 150250.023
Deduct 1560 from 1600 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.

On to step 12:
If we divide 400 by 520, we get 0 and a remainder of 400.
Put 0 as the next digit of the answer. 
Result so far: 150250.023
If we take 0 away from 400, we end up with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Let's proceed to step 13:
When dividing 4000 by 520, we get 7 with a remainder of 360.
Write down 7 as next digit of the result. 
Result so far: 150250.02307
The remainder is 360 after subtracting 3640 from 4000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

On to step 14:
3600 divided by 520 is 6 with a remainder of 480.
The next digit of our result is 6. 
Result so far: 150250.023076
Deduct 3120 from 3600 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Moving on to step 15:
If we divide 4800 by 520, we get 9 and a remainder of 120.
The next digit of our result is 9. 
Result so far: 150250.0230769
Subtracting 4680 from 4800 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Advancing to step 16:
The number 520 fits into 1200 2 times, leaving a remainder of 160.
The number 2 becomes the next digit in our result. 
Result so far: 150250.02307692
Deduct 1040 from 1200 and we're left with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

The quotient of the division is 150250.02307692, and the remainder is 1.6e-07.