Let's divide 345412 by 18
We're looking to find how many times 18 goes into 345412.

Going ahead to step 1:
18 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 18

Let's proceed to step 2:
When dividing 34 by 18, we get 1 with a remainder of 16.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 18 from 34, we get 16.
Include the next digit (5) from the dividend after 16, then repeat: 165 / 18

Moving on to step 3:
When dividing 165 by 18, we get 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 19.0
The remainder is 3 after subtracting 162 from 165.
Bring next digit (4) of the dividend behind the 3 and repeat the process: 34 / 18

Let's proceed to step 4:
The number 18 fits into 34 1 times, leaving a remainder of 16.
Use 1 as the next digit of our solution. 
Result so far: 191.0
If we subtract 18 from 34, we get 16.
Bring next digit (1) of the dividend behind the 16 and repeat the process: 161 / 18

On to step 5:
18 can be fit into 161 8 times, resulting in a remainder of 17.
Write down 8 as next digit of the result. 
Result so far: 1918.0
Subtract 144 from 161 to get 17.
Take the next digit (2) from the dividend and append it to 17, then repeat: 172 / 18

On to step 6:
The number 18 fits into 172 9 times, leaving a remainder of 10.
Write down 9 as next digit of the result. 
Result so far: 19189.0
If we subtract 162 from 172, we 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 7:
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: 19189.5
If we subtract 90 from 100, we 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.

On to step 8:
If we divide 100 by 18, we get 5 and a remainder of 10.
Use 5 as the next digit of our solution. 
Result so far: 19189.55
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.

The final result is 19189.55 with a remainder of 0.01.