957777 ÷ 78 
We want to figure out the number of times 957777 can be divided by 78.

On to step 1:
If we divide 9 by 78, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Take the next digit (5) from the dividend and append it to 9, then repeat: 95 / 78

Advancing to step 2:
If we divide 95 by 78, we get 1 and a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 78 from 95 to get 17.
Append the next digit (7) from the dividend to 17 and continue with: 177 / 78

Advancing to step 3:
When dividing 177 by 78, we get 2 with a remainder of 21.
Use 2 as the next digit of our solution. 
Result so far: 12.0
Subtract 156 from 177 to get 21.
Fetch the next digit (7) from the dividend, attach it to 21 and continue: 217 / 78

Going ahead to step 4:
217 divided by 78 is 2 with a remainder of 61.
Put 2 as the next digit of the answer. 
Result so far: 122.0
If we subtract 156 from 217, we get 61.
Take the next digit (7) from the dividend and append it to 61, then repeat: 617 / 78

On to step 5:
617 divided by 78 is 7 with a remainder of 71.
The number 7 becomes the next digit in our result. 
Result so far: 1227.0
Deduct 546 from 617 and we're left with 71.
Bring next digit (7) of the dividend behind the 71 and repeat the process: 717 / 78

Going ahead to step 6:
717 divided by 78 is 9 with a remainder of 15.
Put 9 as the next digit of the answer. 
Result so far: 12279.0
Subtracting 702 from 717 leaves us with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 7:
78 goes into 150 1 times with a remainder of 72.
Use 1 as the next digit of our solution. 
Result so far: 12279.1
The remainder is 72 after subtracting 78 from 150.
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 8:
78 goes into 720 9 times with a remainder of 18.
The number 9 becomes the next digit in our result. 
Result so far: 12279.19
If we subtract 702 from 720, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 9:
If we divide 180 by 78, we get 2 and a remainder of 24.
The next digit of our result is 2. 
Result so far: 12279.192
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.

Step 10:
78 goes into 240 3 times with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 12279.1923
If we take 234 away from 240, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 11:
60 divided by 78 is 0 with a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 12279.1923
Subtracting 0 from 60 leaves us 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 goes into 600 7 times with a remainder of 54.
Write down 7 as next digit of the result. 
Result so far: 12279.192307
If we subtract 546 from 600, we 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.

Going ahead to step 13:
If we divide 540 by 78, we get 6 and a remainder of 72.
Write down 6 as next digit of the result. 
Result so far: 12279.1923076
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.

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: 12279.19230769
If we subtract 702 from 720, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Our division results in 12279.19230769 with a remaining 1.8e-08.