778774 divided by 78 
We want to divide 778774 by 78.

Going ahead to step 1:
78 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 78

On to step 2:
The number 78 fits into 77 0 times, leaving a remainder of 77.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 77 to get 77.
Include the next digit (8) from the dividend after 77, then repeat: 778 / 78

Advancing to step 3:
The number 78 fits into 778 9 times, leaving a remainder of 76.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 702 from 778 and we're left with 76.
Include the next digit (7) from the dividend after 76, then repeat: 767 / 78

Moving on to step 4:
767 divided by 78 is 9 with a remainder of 65.
The next digit of our result is 9. 
Result so far: 99.0
If we subtract 702 from 767, we get 65.
Take the next digit (7) from the dividend and append it to 65, then repeat: 657 / 78

Going ahead to step 5:
If we divide 657 by 78, we get 8 and a remainder of 33.
Use 8 as the next digit of our solution. 
Result so far: 998.0
Subtract 624 from 657 to get 33.
Grab the next digit (4) from the dividend, add it to 33, then carry on: 334 / 78

On to step 6:
78 goes into 334 4 times with a remainder of 22.
Record the quotient 4 as the next digit in the result. 
Result so far: 9984.0
Subtracting 312 from 334 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 7:
220 divided by 78 is 2 with a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 9984.2
The remainder is 64 after subtracting 156 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 8:
When dividing 640 by 78, we get 8 with a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 9984.28
Subtract 624 from 640 to get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
The number 78 fits into 160 2 times, leaving a remainder of 4.
The next digit of our result is 2. 
Result so far: 9984.282
If we subtract 156 from 160, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 10:
If we divide 40 by 78, we get 0 and a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 9984.282
Subtract 0 from 40 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
When dividing 400 by 78, we get 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 9984.28205
If we subtract 390 from 400, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 12:
If we divide 100 by 78, we get 1 and a remainder of 22.
Put 1 as the next digit of the answer. 
Result so far: 9984.282051
If we take 78 away from 100, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Advancing to step 13:
The number 78 fits into 220 2 times, leaving a remainder of 64.
Use 2 as the next digit of our solution. 
Result so far: 9984.2820512
If we take 156 away from 220, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 14:
640 divided by 78 is 8 with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 9984.28205128
If we subtract 624 from 640, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Our division results in 9984.28205128 with a remaining 1.6e-08.