668984 ÷ 18 
Let's see how many times 18 fits into 668984.

On to step 1:
18 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 18

Let's proceed to step 2:
The number 18 fits into 66 3 times, leaving a remainder of 12.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 54 from 66 to get 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 18

Advancing to step 3:
When dividing 128 by 18, we get 7 with a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 37.0
If we take 126 away from 128, we end up with 2.
Include the next digit (9) from the dividend after 2, then repeat: 29 / 18

Going ahead to step 4:
18 can be fit into 29 1 times, resulting in a remainder of 11.
Write down 1 as next digit of the result. 
Result so far: 371.0
If we subtract 18 from 29, we get 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 18

Advancing to step 5:
18 can be fit into 118 6 times, resulting in a remainder of 10.
The next digit of our result is 6. 
Result so far: 3716.0
Subtracting 108 from 118 leaves us with 10.
Bring next digit (4) of the dividend behind the 10 and repeat the process: 104 / 18

Going ahead to step 6:
104 divided by 18 is 5 with a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 37165.0
The remainder is 14 after subtracting 90 from 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
18 can be fit into 140 7 times, resulting in a remainder of 14.
Record the quotient 7 as the next digit in the result. 
Result so far: 37165.7
Subtracting 126 from 140 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 8:
140 divided by 18 is 7 with a remainder of 14.
Put 7 as the next digit of the answer. 
Result so far: 37165.77
If we take 126 away from 140, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 37165.77 and a remainder of 0.014.