Let's divide 146239 by 18
Let's see how many times 18 fits into 146239.

On to step 1:
18 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (4) from the dividend to 1 and continue with: 14 / 18

On to step 2:
When dividing 14 by 18, we get 0 with a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Bring next digit (6) of the dividend behind the 14 and repeat the process: 146 / 18

Moving on to step 3:
When dividing 146 by 18, we get 8 with a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 144 from 146 and we're left with 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 18

Let's proceed to step 4:
When dividing 22 by 18, we get 1 with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 81.0
If we subtract 18 from 22, we get 4.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 18

Step 5:
When dividing 43 by 18, we get 2 with a remainder of 7.
The next digit of our result is 2. 
Result so far: 812.0
If we subtract 36 from 43, we get 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 18

Going ahead to step 6:
79 divided by 18 is 4 with a remainder of 7.
Put 4 as the next digit of the answer. 
Result so far: 8124.0
If we take 72 away from 79, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 7:
When dividing 70 by 18, we get 3 with a remainder of 16.
The next digit of our result is 3. 
Result so far: 8124.3
Deduct 54 from 70 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 8:
160 divided by 18 is 8 with a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 8124.38
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Advancing to step 9:
18 can be fit into 160 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 8124.388
Subtracting 144 from 160 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 8124.388, with a leftover of 0.0016.