We look at the division of 398818 by 1 
Let's see how many times 1 fits into 398818.

Going ahead to step 1:
The number 1 fits into 3 3 times, leaving a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 3 from 3 and we're left with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 1

Let's proceed to step 2:
If we divide 9 by 1, we get 9 and a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 39.0
Subtract 9 from 9 to get 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 1

Advancing to step 3:
8 divided by 1 is 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 398.0
Subtracting 8 from 8 leaves us with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 1

On to step 4:
If we divide 8 by 1, we get 8 and a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 3988.0
The remainder is 0 after subtracting 8 from 8.
Fetch the next digit (1) from the dividend, attach it to 0 and continue: 1 / 1

On to step 5:
If we divide 1 by 1, we get 1 and a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 39881.0
Subtracting 1 from 1 leaves us with 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 1

Advancing to step 6:
1 can be fit into 8 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 398818.0
If we subtract 8 from 8, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
When dividing 0 by 1, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 398818.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 8:
When dividing 0 by 1, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 398818.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 398818.0 with a remainder of 0.0.