We look at the division of 9981 by 78 
Our goal is to divide 9981 by 78.

Going ahead to step 1:
The number 78 fits into 9 0 times, leaving a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 78

Going ahead to step 2:
78 goes into 99 1 times with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 21 after subtracting 78 from 99.
Grab the next digit (8) from the dividend, add it to 21, then carry on: 218 / 78

Let's proceed to step 3:
When dividing 218 by 78, we get 2 with a remainder of 62.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
The remainder is 62 after subtracting 156 from 218.
Include the next digit (1) from the dividend after 62, then repeat: 621 / 78

On to step 4:
78 goes into 621 7 times with a remainder of 75.
Record the quotient 7 as the next digit in the result. 
Result so far: 127.0
Deduct 546 from 621 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 5:
The number 78 fits into 750 9 times, leaving a remainder of 48.
Record the quotient 9 as the next digit in the result. 
Result so far: 127.9
Subtract 702 from 750 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

On to step 6:
480 divided by 78 is 6 with a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 127.96
Subtract 468 from 480 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.

Going ahead to step 7:
The number 78 fits into 120 1 times, leaving a remainder of 42.
Record the quotient 1 as the next digit in the result. 
Result so far: 127.961
The remainder is 42 after subtracting 78 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 8:
The number 78 fits into 420 5 times, leaving a remainder of 30.
Use 5 as the next digit of our solution. 
Result so far: 127.9615
If we subtract 390 from 420, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
300 divided by 78 is 3 with a remainder of 66.
The next digit of our result is 3. 
Result so far: 127.96153
If we subtract 234 from 300, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Moving on to step 10:
If we divide 660 by 78, we get 8 and a remainder of 36.
Put 8 as the next digit of the answer. 
Result so far: 127.961538
If we take 624 away from 660, we end up with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 11:
78 can be fit into 360 4 times, resulting in a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 127.9615384
Deduct 312 from 360 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 12:
The number 78 fits into 480 6 times, leaving a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 127.96153846
If we subtract 468 from 480, we 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.

The final outcome is 127.96153846, with a leftover of 1.2e-08.