838459 ÷ 18 
We're looking to find how many times 18 goes into 838459.

Going ahead to step 1:
18 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 18

Advancing to step 2:
When dividing 83 by 18, we get 4 with a remainder of 11.
The next digit of our result is 4. 
Result so far: 4.0
If we take 72 away from 83, we end up with 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 18

Advancing to step 3:
When dividing 118 by 18, we get 6 with a remainder of 10.
The next digit of our result is 6. 
Result so far: 46.0
Deduct 108 from 118 and we're left with 10.
Take the next digit (4) from the dividend and append it to 10, then repeat: 104 / 18

Let's proceed to step 4:
104 divided by 18 is 5 with a remainder of 14.
The number 5 becomes the next digit in our result. 
Result so far: 465.0
Subtracting 90 from 104 leaves us with 14.
Grab the next digit (5) from the dividend, add it to 14, then carry on: 145 / 18

Moving on to step 5:
When dividing 145 by 18, we get 8 with a remainder of 1.
Write down 8 as next digit of the result. 
Result so far: 4658.0
The remainder is 1 after subtracting 144 from 145.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 18

Let's proceed to step 6:
19 divided by 18 is 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 46581.0
The remainder is 1 after subtracting 18 from 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
18 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 46581.0
Subtracting 0 from 10 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.

Step 8:
18 can be fit into 100 5 times, resulting in a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 46581.05
Deduct 90 from 100 and we're left 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.

On to step 9:
If we divide 100 by 18, we get 5 and a remainder of 10.
The next digit of our result is 5. 
Result so far: 46581.055
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.

The final result is 46581.055 with a remainder of 0.001.