Let's divide 77071930 by 688
We want to figure out the number of times 77071930 can be divided by 688.

Advancing to step 1:
7 divided by 688 is 0 with a remainder of 7.
The next digit of our result is 0. 
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

Step 2:
When dividing 77 by 688, we get 0 with a remainder of 77.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 77 after subtracting 0 from 77.
Include the next digit (0) from the dividend after 77, then repeat: 770 / 688

Advancing to step 3:
If we divide 770 by 688, we get 1 and a remainder of 82.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 688 from 770 to get 82.
Fetch the next digit (7) from the dividend, attach it to 82 and continue: 827 / 688

Step 4:
When dividing 827 by 688, we get 1 with a remainder of 139.
The number 1 becomes the next digit in our result. 
Result so far: 11.0
The remainder is 139 after subtracting 688 from 827.
Fetch the next digit (1) from the dividend, attach it to 139 and continue: 1391 / 688

Advancing to step 5:
When dividing 1391 by 688, we get 2 with a remainder of 15.
The number 2 becomes the next digit in our result. 
Result so far: 112.0
Subtract 1376 from 1391 to get 15.
Include the next digit (9) from the dividend after 15, then repeat: 159 / 688

Moving on to step 6:
159 divided by 688 is 0 with a remainder of 159.
Put 0 as the next digit of the answer. 
Result so far: 1120.0
If we take 0 away from 159, we end up with 159.
Include the next digit (3) from the dividend after 159, then repeat: 1593 / 688

Advancing to step 7:
1593 divided by 688 is 2 with a remainder of 217.
The number 2 becomes the next digit in our result. 
Result so far: 11202.0
The remainder is 217 after subtracting 1376 from 1593.
Take the next digit (0) from the dividend and append it to 217, then repeat: 2170 / 688

Step 8:
688 goes into 2170 3 times with a remainder of 106.
Record the quotient 3 as the next digit in the result. 
Result so far: 112023.0
Deduct 2064 from 2170 and we're left with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Moving on to step 9:
If we divide 1060 by 688, we get 1 and a remainder of 372.
Write down 1 as next digit of the result. 
Result so far: 112023.1
Subtract 688 from 1060 to get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

On to step 10:
When dividing 3720 by 688, we get 5 with a remainder of 280.
Put 5 as the next digit of the answer. 
Result so far: 112023.15
If we take 3440 away from 3720, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 11:
2800 divided by 688 is 4 with a remainder of 48.
Put 4 as the next digit of the answer. 
Result so far: 112023.154
Subtracting 2752 from 2800 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 12:
688 can be fit into 480 0 times, resulting in a remainder of 480.
Put 0 as the next digit of the answer. 
Result so far: 112023.154
If we subtract 0 from 480, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 13:
4800 divided by 688 is 6 with a remainder of 672.
Write down 6 as next digit of the result. 
Result so far: 112023.15406
Deduct 4128 from 4800 and we're left with 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

Step 14:
688 goes into 6720 9 times with a remainder of 528.
The number 9 becomes the next digit in our result. 
Result so far: 112023.154069
If we take 6192 away from 6720, we end up with 528.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5280, and continue the process.

Let's proceed to step 15:
688 goes into 5280 7 times with a remainder of 464.
Write down 7 as next digit of the result. 
Result so far: 112023.1540697
If we subtract 4816 from 5280, we get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 16:
When dividing 4640 by 688, we get 6 with a remainder of 512.
The next digit of our result is 6. 
Result so far: 112023.15406976
If we subtract 4128 from 4640, we get 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

After the division, we end up with 112023.15406976 and a remainder of 5.12e-07.