660313 ÷ 18 
Let's see how many times 18 fits into 660313.

Moving on to step 1:
The number 18 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 18

Advancing to step 2:
When dividing 66 by 18, we get 3 with a remainder of 12.
The next digit of our result is 3. 
Result so far: 3.0
The remainder is 12 after subtracting 54 from 66.
Append the next digit (0) from the dividend to 12 and continue with: 120 / 18

Step 3:
If we divide 120 by 18, we get 6 and a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 36.0
If we subtract 108 from 120, we get 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 18

On to step 4:
The number 18 fits into 123 6 times, leaving a remainder of 15.
Use 6 as the next digit of our solution. 
Result so far: 366.0
If we subtract 108 from 123, we get 15.
Fetch the next digit (1) from the dividend, attach it to 15 and continue: 151 / 18

Moving on to step 5:
151 divided by 18 is 8 with a remainder of 7.
Write down 8 as next digit of the result. 
Result so far: 3668.0
If we subtract 144 from 151, we get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 18

Advancing to step 6:
18 goes into 73 4 times with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 36684.0
If we subtract 72 from 73, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
The number 18 fits into 10 0 times, leaving a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 36684.0
Deduct 0 from 10 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.

Advancing to step 8:
100 divided by 18 is 5 with a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 36684.05
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
The number 18 fits into 100 5 times, leaving a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 36684.055
Subtracting 90 from 100 leaves us 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.

In conclusion, the division gives 36684.055 with a balance of 0.001.