We look at the division of 1687426 by 647 
We're looking to find how many times 647 goes into 1687426.

On to step 1:
When dividing 1 by 647, we get 0 with a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (6) from the dividend, attach it to 1 and continue: 16 / 647

Going ahead to step 2:
647 goes into 16 0 times with a remainder of 16.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 16 leaves us with 16.
Grab the next digit (8) from the dividend, add it to 16, then carry on: 168 / 647

Advancing to step 3:
168 divided by 647 is 0 with a remainder of 168.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 168 after subtracting 0 from 168.
Bring next digit (7) of the dividend behind the 168 and repeat the process: 1687 / 647

Let's proceed to step 4:
647 can be fit into 1687 2 times, resulting in a remainder of 393.
The next digit of our result is 2. 
Result so far: 2.0
If we subtract 1294 from 1687, we get 393.
Fetch the next digit (4) from the dividend, attach it to 393 and continue: 3934 / 647

On to step 5:
647 can be fit into 3934 6 times, resulting in a remainder of 52.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
If we take 3882 away from 3934, we end up with 52.
Take the next digit (2) from the dividend and append it to 52, then repeat: 522 / 647

Step 6:
The number 647 fits into 522 0 times, leaving a remainder of 522.
Use 0 as the next digit of our solution. 
Result so far: 260.0
Deduct 0 from 522 and we're left with 522.
Fetch the next digit (6) from the dividend, attach it to 522 and continue: 5226 / 647

Step 7:
When dividing 5226 by 647, we get 8 with a remainder of 50.
Write down 8 as next digit of the result. 
Result so far: 2608.0
Subtract 5176 from 5226 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 8:
647 can be fit into 500 0 times, resulting in a remainder of 500.
Use 0 as the next digit of our solution. 
Result so far: 2608.0
Subtracting 0 from 500 leaves us with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Advancing to step 9:
5000 divided by 647 is 7 with a remainder of 471.
The number 7 becomes the next digit in our result. 
Result so far: 2608.07
The remainder is 471 after subtracting 4529 from 5000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4710, and continue the process.

Advancing to step 10:
If we divide 4710 by 647, we get 7 and a remainder of 181.
The next digit of our result is 7. 
Result so far: 2608.077
Subtracting 4529 from 4710 leaves us with 181.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1810, and continue the process.

After the division, we end up with 2608.077 and a remainder of 0.0181.