77129544 ÷ 688 
We're looking to find how many times 688 goes into 77129544.

Let's proceed to step 1:
If we divide 7 by 688, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (7) from the dividend after 7, then repeat: 77 / 688

On to step 2:
688 can be fit into 77 0 times, resulting in a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 77, we get 77.
Bring next digit (1) of the dividend behind the 77 and repeat the process: 771 / 688

Advancing to step 3:
771 divided by 688 is 1 with a remainder of 83.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 688 from 771 leaves us with 83.
Bring next digit (2) of the dividend behind the 83 and repeat the process: 832 / 688

Let's proceed to step 4:
The number 688 fits into 832 1 times, leaving a remainder of 144.
The next digit of our result is 1. 
Result so far: 11.0
If we subtract 688 from 832, we get 144.
Include the next digit (9) from the dividend after 144, then repeat: 1449 / 688

Moving on to step 5:
1449 divided by 688 is 2 with a remainder of 73.
Record the quotient 2 as the next digit in the result. 
Result so far: 112.0
If we subtract 1376 from 1449, we get 73.
Take the next digit (5) from the dividend and append it to 73, then repeat: 735 / 688

Advancing to step 6:
735 divided by 688 is 1 with a remainder of 47.
Record the quotient 1 as the next digit in the result. 
Result so far: 1121.0
Subtracting 688 from 735 leaves us with 47.
Bring next digit (4) of the dividend behind the 47 and repeat the process: 474 / 688

Going ahead to step 7:
474 divided by 688 is 0 with a remainder of 474.
Write down 0 as next digit of the result. 
Result so far: 11210.0
If we take 0 away from 474, we end up with 474.
Take the next digit (4) from the dividend and append it to 474, then repeat: 4744 / 688

On to step 8:
The number 688 fits into 4744 6 times, leaving a remainder of 616.
Put 6 as the next digit of the answer. 
Result so far: 112106.0
Subtract 4128 from 4744 to get 616.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6160, and continue the process.

Advancing to step 9:
688 can be fit into 6160 8 times, resulting in a remainder of 656.
Write down 8 as next digit of the result. 
Result so far: 112106.8
If we take 5504 away from 6160, we end up with 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Step 10:
688 goes into 6560 9 times with a remainder of 368.
Use 9 as the next digit of our solution. 
Result so far: 112106.89
Subtract 6192 from 6560 to get 368.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3680, and continue the process.

On to step 11:
When dividing 3680 by 688, we get 5 with a remainder of 240.
The next digit of our result is 5. 
Result so far: 112106.895
Subtract 3440 from 3680 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 12:
When dividing 2400 by 688, we get 3 with a remainder of 336.
Write down 3 as next digit of the result. 
Result so far: 112106.8953
Subtracting 2064 from 2400 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Let's proceed to step 13:
If we divide 3360 by 688, we get 4 and a remainder of 608.
Write down 4 as next digit of the result. 
Result so far: 112106.89534
If we take 2752 away from 3360, we end up with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Advancing to step 14:
The number 688 fits into 6080 8 times, leaving a remainder of 576.
Record the quotient 8 as the next digit in the result. 
Result so far: 112106.895348
Deduct 5504 from 6080 and we're left with 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

On to step 15:
5760 divided by 688 is 8 with a remainder of 256.
Record the quotient 8 as the next digit in the result. 
Result so far: 112106.8953488
If we subtract 5504 from 5760, we get 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

The final outcome is 112106.8953488, with a leftover of 2.56e-06.