220339 ÷ 18 
Let's see how many times 18 fits into 220339.

Step 1:
18 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (2) from the dividend to 2 and continue with: 22 / 18

Advancing to step 2:
18 goes into 22 1 times with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 18 from 22 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 18

Moving on to step 3:
18 can be fit into 40 2 times, resulting in a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 36 from 40 to get 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 18

On to step 4:
18 goes into 43 2 times with a remainder of 7.
Use 2 as the next digit of our solution. 
Result so far: 122.0
Subtracting 36 from 43 leaves us with 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 18

Step 5:
When dividing 73 by 18, we get 4 with a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 1224.0
If we subtract 72 from 73, we get 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 18

Let's proceed to step 6:
18 can be fit into 19 1 times, resulting in a remainder of 1.
The next digit of our result is 1. 
Result so far: 12241.0
The remainder is 1 after subtracting 18 from 19.
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:
18 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 12241.0
Subtract 0 from 10 to get 10.
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 8:
The number 18 fits into 100 5 times, leaving a remainder of 10.
The next digit of our result is 5. 
Result so far: 12241.05
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.

Let's proceed to step 9:
18 goes into 100 5 times with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 12241.055
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final outcome is 12241.055, with a leftover of 0.001.