We're dividing 84212 by 18 
We're looking to find how many times 18 goes into 84212.

Advancing to step 1:
When dividing 8 by 18, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 18

Moving on to step 2:
18 can be fit into 84 4 times, resulting in a remainder of 12.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 72 away from 84, we end up with 12.
Include the next digit (2) from the dividend after 12, then repeat: 122 / 18

Let's proceed to step 3:
If we divide 122 by 18, we get 6 and a remainder of 14.
Record the quotient 6 as the next digit in the result. 
Result so far: 46.0
If we subtract 108 from 122, we get 14.
Grab the next digit (1) from the dividend, add it to 14, then carry on: 141 / 18

Advancing to step 4:
18 can be fit into 141 7 times, resulting in a remainder of 15.
The number 7 becomes the next digit in our result. 
Result so far: 467.0
If we subtract 126 from 141, we get 15.
Grab the next digit (2) from the dividend, add it to 15, then carry on: 152 / 18

Advancing to step 5:
When dividing 152 by 18, we get 8 with a remainder of 8.
The next digit of our result is 8. 
Result so far: 4678.0
Deduct 144 from 152 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 6:
If we divide 80 by 18, we get 4 and a remainder of 8.
The next digit of our result is 4. 
Result so far: 4678.4
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
When dividing 80 by 18, we get 4 with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 4678.44
If we take 72 away from 80, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 4678.44 with a remainder of 0.008.