355359 ÷ 18 
Our goal is to divide 355359 by 18.

Going ahead to step 1:
18 goes into 3 0 times with a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (5) from the dividend after 3, then repeat: 35 / 18

Moving on to step 2:
When dividing 35 by 18, we get 1 with a remainder of 17.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 18 from 35 to get 17.
Include the next digit (5) from the dividend after 17, then repeat: 175 / 18

Let's proceed to step 3:
The number 18 fits into 175 9 times, leaving a remainder of 13.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we subtract 162 from 175, we get 13.
Include the next digit (3) from the dividend after 13, then repeat: 133 / 18

Advancing to step 4:
18 goes into 133 7 times with a remainder of 7.
Write down 7 as next digit of the result. 
Result so far: 197.0
Subtract 126 from 133 to get 7.
Bring next digit (5) of the dividend behind the 7 and repeat the process: 75 / 18

Going ahead to step 5:
18 goes into 75 4 times with a remainder of 3.
The number 4 becomes the next digit in our result. 
Result so far: 1974.0
Subtracting 72 from 75 leaves us with 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 18

Advancing to step 6:
18 can be fit into 39 2 times, resulting in a remainder of 3.
Record the quotient 2 as the next digit in the result. 
Result so far: 19742.0
The remainder is 3 after subtracting 36 from 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
18 goes into 30 1 times with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 19742.1
Subtracting 18 from 30 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 8:
18 can be fit into 120 6 times, resulting in a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 19742.16
If we subtract 108 from 120, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
18 can be fit into 120 6 times, resulting in a remainder of 12.
Write down 6 as next digit of the result. 
Result so far: 19742.166
The remainder is 12 after subtracting 108 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final result is 19742.166 with a remainder of 0.0012.