We're dividing 91140 by 79 
Let's see how many times 79 fits into 91140.

On to step 1:
When dividing 9 by 79, we get 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 79

Going ahead to step 2:
If we divide 91 by 79, we get 1 and a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 79 from 91 leaves us with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 79

Advancing to step 3:
79 goes into 121 1 times with a remainder of 42.
The next digit of our result is 1. 
Result so far: 11.0
Subtracting 79 from 121 leaves us with 42.
Fetch the next digit (4) from the dividend, attach it to 42 and continue: 424 / 79

Let's proceed to step 4:
424 divided by 79 is 5 with a remainder of 29.
Write down 5 as next digit of the result. 
Result so far: 115.0
Deduct 395 from 424 and we're left with 29.
Take the next digit (0) from the dividend and append it to 29, then repeat: 290 / 79

Step 5:
290 divided by 79 is 3 with a remainder of 53.
Put 3 as the next digit of the answer. 
Result so far: 1153.0
Subtracting 237 from 290 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 6:
79 goes into 530 6 times with a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 1153.6
If we take 474 away from 530, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 7:
The number 79 fits into 560 7 times, leaving a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 1153.67
Deduct 553 from 560 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 8:
79 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 1153.67
If we subtract 0 from 70, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
If we divide 700 by 79, we get 8 and a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 1153.6708
Deduct 632 from 700 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 10:
79 can be fit into 680 8 times, resulting in a remainder of 48.
Record the quotient 8 as the next digit in the result. 
Result so far: 1153.67088
If we subtract 632 from 680, we 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.

The final result is 1153.67088 with a remainder of 4.8e-05.