We look at the division of 77753911 by 78 
We're looking to find how many times 78 goes into 77753911.

On to step 1:
If we divide 7 by 78, we get 0 and a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Grab the next digit (7) from the dividend, add it to 7, then carry on: 77 / 78

Going ahead to step 2:
77 divided by 78 is 0 with a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 77 leaves us with 77.
Fetch the next digit (7) from the dividend, attach it to 77 and continue: 777 / 78

Step 3:
78 goes into 777 9 times with a remainder of 75.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
If we subtract 702 from 777, we get 75.
Take the next digit (5) from the dividend and append it to 75, then repeat: 755 / 78

Let's proceed to step 4:
78 can be fit into 755 9 times, resulting in a remainder of 53.
Put 9 as the next digit of the answer. 
Result so far: 99.0
If we subtract 702 from 755, we get 53.
Take the next digit (3) from the dividend and append it to 53, then repeat: 533 / 78

Advancing to step 5:
If we divide 533 by 78, we get 6 and a remainder of 65.
The next digit of our result is 6. 
Result so far: 996.0
Subtract 468 from 533 to get 65.
Bring next digit (9) of the dividend behind the 65 and repeat the process: 659 / 78

On to step 6:
The number 78 fits into 659 8 times, leaving a remainder of 35.
Use 8 as the next digit of our solution. 
Result so far: 9968.0
Subtract 624 from 659 to get 35.
Append the next digit (1) from the dividend to 35 and continue with: 351 / 78

On to step 7:
78 can be fit into 351 4 times, resulting in a remainder of 39.
Write down 4 as next digit of the result. 
Result so far: 99684.0
If we take 312 away from 351, we end up with 39.
Fetch the next digit (1) from the dividend, attach it to 39 and continue: 391 / 78

On to step 8:
78 goes into 391 5 times with a remainder of 1.
Use 5 as the next digit of our solution. 
Result so far: 996845.0
Deduct 390 from 391 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 9:
78 can be fit into 10 0 times, resulting in a remainder of 10.
The next digit of our result is 0. 
Result so far: 996845.0
Subtract 0 from 10 to 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.

Let's proceed to step 10:
When dividing 100 by 78, we get 1 with a remainder of 22.
The next digit of our result is 1. 
Result so far: 996845.01
Deduct 78 from 100 and we're left 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 11:
The number 78 fits into 220 2 times, leaving a remainder of 64.
The number 2 becomes the next digit in our result. 
Result so far: 996845.012
Subtract 156 from 220 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 12:
When dividing 640 by 78, we get 8 with a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 996845.0128
Deduct 624 from 640 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 13:
The number 78 fits into 160 2 times, leaving a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 996845.01282
Subtract 156 from 160 to 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.

On to step 14:
When dividing 40 by 78, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 996845.01282
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 15:
78 can be fit into 400 5 times, resulting in a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 996845.0128205
Subtract 390 from 400 to 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.

Let's proceed to step 16:
78 goes into 100 1 times with a remainder of 22.
The next digit of our result is 1. 
Result so far: 996845.01282051
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.

The final result is 996845.01282051 with a remainder of 2.2e-08.