We look at the division of 91788158 by 78 
We want to divide 91788158 by 78.

Going ahead to step 1:
The number 78 fits into 9 0 times, leaving a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 9 leaves us with 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 78

Going ahead to step 2:
If we divide 91 by 78, we get 1 and a remainder of 13.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 13 after subtracting 78 from 91.
Take the next digit (7) from the dividend and append it to 13, then repeat: 137 / 78

Step 3:
78 goes into 137 1 times with a remainder of 59.
Put 1 as the next digit of the answer. 
Result so far: 11.0
The remainder is 59 after subtracting 78 from 137.
Include the next digit (8) from the dividend after 59, then repeat: 598 / 78

Moving on to step 4:
The number 78 fits into 598 7 times, leaving a remainder of 52.
The next digit of our result is 7. 
Result so far: 117.0
If we subtract 546 from 598, we get 52.
Append the next digit (8) from the dividend to 52 and continue with: 528 / 78

Moving on to step 5:
The number 78 fits into 528 6 times, leaving a remainder of 60.
Put 6 as the next digit of the answer. 
Result so far: 1176.0
Subtract 468 from 528 to get 60.
Fetch the next digit (1) from the dividend, attach it to 60 and continue: 601 / 78

Moving on to step 6:
78 can be fit into 601 7 times, resulting in a remainder of 55.
The number 7 becomes the next digit in our result. 
Result so far: 11767.0
If we take 546 away from 601, we end up with 55.
Append the next digit (5) from the dividend to 55 and continue with: 555 / 78

Step 7:
The number 78 fits into 555 7 times, leaving a remainder of 9.
Use 7 as the next digit of our solution. 
Result so far: 117677.0
If we take 546 away from 555, we end up with 9.
Fetch the next digit (8) from the dividend, attach it to 9 and continue: 98 / 78

Step 8:
The number 78 fits into 98 1 times, leaving a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1176771.0
Deduct 78 from 98 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 9:
When dividing 200 by 78, we get 2 with a remainder of 44.
Record the quotient 2 as the next digit in the result. 
Result so far: 1176771.2
Subtract 156 from 200 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 10:
78 can be fit into 440 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 1176771.25
Subtracting 390 from 440 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 11:
If we divide 500 by 78, we get 6 and a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 1176771.256
Subtract 468 from 500 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

On to step 12:
When dividing 320 by 78, we get 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 1176771.2564
Subtract 312 from 320 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
78 can be fit into 80 1 times, resulting in a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1176771.25641
If we subtract 78 from 80, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 14:
78 goes into 20 0 times with a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 1176771.25641
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 15:
200 divided by 78 is 2 with a remainder of 44.
The number 2 becomes the next digit in our result. 
Result so far: 1176771.2564102
If we take 156 away from 200, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 16:
440 divided by 78 is 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 1176771.25641025
Subtract 390 from 440 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

The final result is 1176771.25641025 with a remainder of 5e-08.