We divide 843839 by 18
Our goal is to divide 843839 by 18.

Advancing to step 1:
If we divide 8 by 18, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (4) from the dividend to 8 and continue with: 84 / 18

Moving on to step 2:
18 can be fit into 84 4 times, resulting in a remainder of 12.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 12 after subtracting 72 from 84.
Take the next digit (3) from the dividend and append it to 12, then repeat: 123 / 18

On to step 3:
The number 18 fits into 123 6 times, leaving a remainder of 15.
Use 6 as the next digit of our solution. 
Result so far: 46.0
Subtract 108 from 123 to get 15.
Append the next digit (8) from the dividend to 15 and continue with: 158 / 18

Let's proceed to step 4:
If we divide 158 by 18, we get 8 and a remainder of 14.
Put 8 as the next digit of the answer. 
Result so far: 468.0
The remainder is 14 after subtracting 144 from 158.
Append the next digit (3) from the dividend to 14 and continue with: 143 / 18

On to step 5:
18 can be fit into 143 7 times, resulting in a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 4687.0
If we take 126 away from 143, we end up with 17.
Bring next digit (9) of the dividend behind the 17 and repeat the process: 179 / 18

Advancing to step 6:
If we divide 179 by 18, we get 9 and a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 46879.0
Deduct 162 from 179 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 7:
If we divide 170 by 18, we get 9 and a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 46879.9
Subtract 162 from 170 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 8:
80 divided by 18 is 4 with a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 46879.94
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.

Advancing to step 9:
The number 18 fits into 80 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 46879.944
Subtract 72 from 80 to get 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 46879.944 with a remainder of 0.0008.