We look at the division of 15178736 by 688 
We want to divide 15178736 by 688.

Step 1:
688 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Bring next digit (5) of the dividend behind the 1 and repeat the process: 15 / 688

Going ahead to step 2:
If we divide 15 by 688, we get 0 and a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 688

Advancing to step 3:
151 divided by 688 is 0 with a remainder of 151.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 151, we end up with 151.
Grab the next digit (7) from the dividend, add it to 151, then carry on: 1517 / 688

Advancing to step 4:
688 can be fit into 1517 2 times, resulting in a remainder of 141.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1376 from 1517 to get 141.
Bring next digit (8) of the dividend behind the 141 and repeat the process: 1418 / 688

Going ahead to step 5:
688 goes into 1418 2 times with a remainder of 42.
Put 2 as the next digit of the answer. 
Result so far: 22.0
Deduct 1376 from 1418 and we're left with 42.
Include the next digit (7) from the dividend after 42, then repeat: 427 / 688

Advancing to step 6:
688 goes into 427 0 times with a remainder of 427.
The number 0 becomes the next digit in our result. 
Result so far: 220.0
If we take 0 away from 427, we end up with 427.
Include the next digit (3) from the dividend after 427, then repeat: 4273 / 688

On to step 7:
If we divide 4273 by 688, we get 6 and a remainder of 145.
The next digit of our result is 6. 
Result so far: 2206.0
Deduct 4128 from 4273 and we're left with 145.
Bring next digit (6) of the dividend behind the 145 and repeat the process: 1456 / 688

On to step 8:
The number 688 fits into 1456 2 times, leaving a remainder of 80.
The number 2 becomes the next digit in our result. 
Result so far: 22062.0
The remainder is 80 after subtracting 1376 from 1456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Moving on to step 9:
688 goes into 800 1 times with a remainder of 112.
The number 1 becomes the next digit in our result. 
Result so far: 22062.1
Deduct 688 from 800 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 10:
The number 688 fits into 1120 1 times, leaving a remainder of 432.
Record the quotient 1 as the next digit in the result. 
Result so far: 22062.11
If we take 688 away from 1120, we end up with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

The final result is 22062.11 with a remainder of 0.432.