218404 ÷ 18 
Our goal is to divide 218404 by 18.

Step 1:
If we divide 2 by 18, we get 0 and a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 18

Going ahead to step 2:
If we divide 21 by 18, we get 1 and a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 18 from 21 to get 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 18

Let's proceed to step 3:
If we divide 38 by 18, we get 2 and a remainder of 2.
The next digit of our result is 2. 
Result so far: 12.0
Subtract 36 from 38 to get 2.
Include the next digit (4) from the dividend after 2, then repeat: 24 / 18

Step 4:
When dividing 24 by 18, we get 1 with a remainder of 6.
Use 1 as the next digit of our solution. 
Result so far: 121.0
The remainder is 6 after subtracting 18 from 24.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 18

Going ahead to step 5:
18 can be fit into 60 3 times, resulting in a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 1213.0
The remainder is 6 after subtracting 54 from 60.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 18

On to step 6:
If we divide 64 by 18, we get 3 and a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 12133.0
Deduct 54 from 64 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.

Step 7:
18 goes into 100 5 times with a remainder of 10.
Put 5 as the next digit of the answer. 
Result so far: 12133.5
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.

Step 8:
18 can be fit into 100 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 12133.55
If we take 90 away from 100, we end up 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.

The final outcome is 12133.55, with a leftover of 0.01.