688090 divided by 40 
Our goal is to divide 688090 by 40.

Moving on to step 1:
40 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.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 40

Let's proceed to step 2:
40 goes into 68 1 times with a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 28 after subtracting 40 from 68.
Bring next digit (8) of the dividend behind the 28 and repeat the process: 288 / 40

Advancing to step 3:
When dividing 288 by 40, we get 7 with a remainder of 8.
The next digit of our result is 7. 
Result so far: 17.0
Subtract 280 from 288 to get 8.
Grab the next digit (0) from the dividend, add it to 8, then carry on: 80 / 40

On to step 4:
80 divided by 40 is 2 with a remainder of 0.
The next digit of our result is 2. 
Result so far: 172.0
Deduct 80 from 80 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 40

Let's proceed to step 5:
40 can be fit into 9 0 times, resulting in a remainder of 9.
Record the quotient 0 as the next digit in the result. 
Result so far: 1720.0
If we take 0 away from 9, we end up with 9.
Include the next digit (0) from the dividend after 9, then repeat: 90 / 40

Let's proceed to step 6:
40 can be fit into 90 2 times, resulting in a remainder of 10.
The next digit of our result is 2. 
Result so far: 17202.0
Deduct 80 from 90 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 7:
40 goes into 100 2 times with a remainder of 20.
The next digit of our result is 2. 
Result so far: 17202.2
Deduct 80 from 100 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
If we divide 200 by 40, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 17202.25
Subtract 200 from 200 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
When dividing 0 by 40, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 17202.25
If we take 0 away from 0, we end up 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.

Step 10:
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: 17202.25
Subtracting 0 from 0 leaves us 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 17202.25 and a remainder of 0.0.