We look at the division of 420152 by 18 
Our goal is to divide 420152 by 18.

Moving on to step 1:
18 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 18

Let's proceed to step 2:
18 can be fit into 42 2 times, resulting in a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 36 from 42 to get 6.
Append the next digit (0) from the dividend to 6 and continue with: 60 / 18

Advancing to step 3:
60 divided by 18 is 3 with a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we subtract 54 from 60, we get 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 18

Moving on to step 4:
18 can be fit into 61 3 times, resulting in a remainder of 7.
Record the quotient 3 as the next digit in the result. 
Result so far: 233.0
Subtract 54 from 61 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 18

Going ahead to step 5:
If we divide 75 by 18, we get 4 and a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 2334.0
If we subtract 72 from 75, we get 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 18

On to step 6:
When dividing 32 by 18, we get 1 with a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 23341.0
Subtract 18 from 32 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Moving on to step 7:
140 divided by 18 is 7 with a remainder of 14.
Use 7 as the next digit of our solution. 
Result so far: 23341.7
Subtracting 126 from 140 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 8:
140 divided by 18 is 7 with a remainder of 14.
The number 7 becomes the next digit in our result. 
Result so far: 23341.77
If we take 126 away from 140, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final outcome is 23341.77, with a leftover of 0.014.