We're dividing 789960 by 78 
Let's see how many times 78 fits into 789960.

On to step 1:
The number 78 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 78

Going ahead to step 2:
When dividing 78 by 78, we get 1 with a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 78 from 78 leaves us with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 78

Going ahead to step 3:
78 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 10.0
The remainder is 9 after subtracting 0 from 9.
Include the next digit (9) from the dividend after 9, then repeat: 99 / 78

On to step 4:
When dividing 99 by 78, we get 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 101.0
If we take 78 away from 99, we end up with 21.
Take the next digit (6) from the dividend and append it to 21, then repeat: 216 / 78

Advancing to step 5:
216 divided by 78 is 2 with a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 1012.0
Deduct 156 from 216 and we're left with 60.
Fetch the next digit (0) from the dividend, attach it to 60 and continue: 600 / 78

Let's proceed to step 6:
600 divided by 78 is 7 with a remainder of 54.
Record the quotient 7 as the next digit in the result. 
Result so far: 10127.0
If we take 546 away from 600, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 7:
78 goes into 540 6 times with a remainder of 72.
Record the quotient 6 as the next digit in the result. 
Result so far: 10127.6
If we take 468 away from 540, we end up with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Let's proceed to step 8:
78 goes into 720 9 times with a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 10127.69
Subtracting 702 from 720 leaves us with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
The number 78 fits into 180 2 times, leaving a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 10127.692
If we take 156 away from 180, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 10:
78 goes into 240 3 times with a remainder of 6.
The number 3 becomes the next digit in our result. 
Result so far: 10127.6923
Subtract 234 from 240 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 11:
When dividing 60 by 78, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 10127.6923
If we take 0 away from 60, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 12:
78 can be fit into 600 7 times, resulting in a remainder of 54.
The next digit of our result is 7. 
Result so far: 10127.692307
Subtract 546 from 600 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Step 13:
78 can be fit into 540 6 times, resulting in a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 10127.6923076
Deduct 468 from 540 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 14:
If we divide 720 by 78, we get 9 and a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 10127.69230769
Deduct 702 from 720 and we're left with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 10127.69230769 with a balance of 1.8e-08.