690664 ÷ 18 
We want to divide 690664 by 18.

Step 1:
18 can be fit into 6 0 times, resulting in a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 18

Moving on to step 2:
69 divided by 18 is 3 with a remainder of 15.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 54 from 69, we get 15.
Take the next digit (0) from the dividend and append it to 15, then repeat: 150 / 18

Moving on to step 3:
When dividing 150 by 18, we get 8 with a remainder of 6.
Write down 8 as next digit of the result. 
Result so far: 38.0
Subtracting 144 from 150 leaves us with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 18

Going ahead to step 4:
When dividing 66 by 18, we get 3 with a remainder of 12.
Record the quotient 3 as the next digit in the result. 
Result so far: 383.0
If we take 54 away from 66, we end up with 12.
Fetch the next digit (6) from the dividend, attach it to 12 and continue: 126 / 18

On to step 5:
126 divided by 18 is 7 with a remainder of 0.
The next digit of our result is 7. 
Result so far: 3837.0
If we take 126 away from 126, we end up with 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 18

Advancing to step 6:
18 goes into 4 0 times with a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 38370.0
Deduct 0 from 4 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
18 goes into 40 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 38370.2
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 8:
If we divide 40 by 18, we get 2 and a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 38370.22
Subtracting 36 from 40 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

The quotient of the division is 38370.22, and the remainder is 0.004.