78145344 divided by 77 
We want to figure out the number of times 78145344 can be divided by 77.

Step 1:
The number 77 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 77

Step 2:
The number 77 fits into 78 1 times, leaving a remainder of 1.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 77 from 78 leaves us with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 77

Let's proceed to step 3:
When dividing 11 by 77, we get 0 with a remainder of 11.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 11, we get 11.
Fetch the next digit (4) from the dividend, attach it to 11 and continue: 114 / 77

Advancing to step 4:
When dividing 114 by 77, we get 1 with a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 101.0
If we subtract 77 from 114, we get 37.
Grab the next digit (5) from the dividend, add it to 37, then carry on: 375 / 77

On to step 5:
77 can be fit into 375 4 times, resulting in a remainder of 67.
Put 4 as the next digit of the answer. 
Result so far: 1014.0
If we subtract 308 from 375, we get 67.
Grab the next digit (3) from the dividend, add it to 67, then carry on: 673 / 77

Step 6:
When dividing 673 by 77, we get 8 with a remainder of 57.
Put 8 as the next digit of the answer. 
Result so far: 10148.0
The remainder is 57 after subtracting 616 from 673.
Take the next digit (4) from the dividend and append it to 57, then repeat: 574 / 77

Going ahead to step 7:
When dividing 574 by 77, we get 7 with a remainder of 35.
Put 7 as the next digit of the answer. 
Result so far: 101487.0
Deduct 539 from 574 and we're left with 35.
Append the next digit (4) from the dividend to 35 and continue with: 354 / 77

Let's proceed to step 8:
77 can be fit into 354 4 times, resulting in a remainder of 46.
Record the quotient 4 as the next digit in the result. 
Result so far: 1014874.0
Subtract 308 from 354 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 9:
If we divide 460 by 77, we get 5 and a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 1014874.5
Subtracting 385 from 460 leaves us with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 10:
When dividing 750 by 77, we get 9 with a remainder of 57.
Record the quotient 9 as the next digit in the result. 
Result so far: 1014874.59
Subtract 693 from 750 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Advancing to step 11:
The number 77 fits into 570 7 times, leaving a remainder of 31.
The next digit of our result is 7. 
Result so far: 1014874.597
If we take 539 away from 570, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Advancing to step 12:
If we divide 310 by 77, we get 4 and a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 1014874.5974
Deduct 308 from 310 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 13:
When dividing 20 by 77, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 1014874.5974
If we subtract 0 from 20, we get 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 14:
If we divide 200 by 77, we get 2 and a remainder of 46.
The number 2 becomes the next digit in our result. 
Result so far: 1014874.597402
If we subtract 154 from 200, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 15:
460 divided by 77 is 5 with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 1014874.5974025
If we subtract 385 from 460, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 16:
750 divided by 77 is 9 with a remainder of 57.
Record the quotient 9 as the next digit in the result. 
Result so far: 1014874.59740259
Subtract 693 from 750 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The final outcome is 1014874.59740259, with a leftover of 5.7e-08.