688684 divided by 40 
We want to divide 688684 by 40.

On to step 1:
When dividing 6 by 40, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 40

Step 2:
68 divided by 40 is 1 with a remainder of 28.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 40 away from 68, we end up with 28.
Fetch the next digit (8) from the dividend, attach it to 28 and continue: 288 / 40

Let's proceed to step 3:
The number 40 fits into 288 7 times, leaving a remainder of 8.
The next digit of our result is 7. 
Result so far: 17.0
Deduct 280 from 288 and we're left with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 40

Advancing to step 4:
The number 40 fits into 86 2 times, leaving a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 172.0
Subtract 80 from 86 to get 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 40

Let's proceed to step 5:
When dividing 68 by 40, we get 1 with a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 1721.0
Subtract 40 from 68 to get 28.
Append the next digit (4) from the dividend to 28 and continue with: 284 / 40

Going ahead to step 6:
When dividing 284 by 40, we get 7 with a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 17217.0
If we subtract 280 from 284, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 7:
40 divided by 40 is 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 17217.1
The remainder is 0 after subtracting 40 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
If we divide 0 by 40, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 17217.1
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
When dividing 0 by 40, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 17217.1
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 17217.1 and a remainder of 0.0.