688810 ÷ 79 
We're looking to find how many times 79 goes into 688810.

Going ahead to step 1:
79 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 79

On to step 2:
When dividing 68 by 79, we get 0 with a remainder of 68.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 68 and we're left with 68.
Include the next digit (8) from the dividend after 68, then repeat: 688 / 79

Step 3:
79 goes into 688 8 times with a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Subtract 632 from 688 to get 56.
Bring next digit (8) of the dividend behind the 56 and repeat the process: 568 / 79

Step 4:
79 can be fit into 568 7 times, resulting in a remainder of 15.
The next digit of our result is 7. 
Result so far: 87.0
If we subtract 553 from 568, we get 15.
Grab the next digit (1) from the dividend, add it to 15, then carry on: 151 / 79

Going ahead to step 5:
151 divided by 79 is 1 with a remainder of 72.
Write down 1 as next digit of the result. 
Result so far: 871.0
Deduct 79 from 151 and we're left with 72.
Include the next digit (0) from the dividend after 72, then repeat: 720 / 79

On to step 6:
720 divided by 79 is 9 with a remainder of 9.
Record the quotient 9 as the next digit in the result. 
Result so far: 8719.0
Subtract 711 from 720 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 7:
79 goes into 90 1 times with a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 8719.1
If we take 79 away from 90, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 8:
If we divide 110 by 79, we get 1 and a remainder of 31.
Put 1 as the next digit of the answer. 
Result so far: 8719.11
Deduct 79 from 110 and we're left 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.

After the division, we end up with 8719.11 and a remainder of 0.031.