Let's divide 398934 by 1
We're looking to find how many times 1 goes into 398934.

Going ahead to step 1:
When dividing 3 by 1, we get 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 3.0
If we subtract 3 from 3, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 1

On to step 2:
1 goes into 9 9 times with a remainder of 0.
The number 9 becomes the next digit in our result. 
Result so far: 39.0
Deduct 9 from 9 and we're left with 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 1

Let's proceed to step 3:
If we divide 8 by 1, we get 8 and a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 398.0
Subtracting 8 from 8 leaves us with 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 1

Let's proceed to step 4:
The number 1 fits into 9 9 times, leaving a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 3989.0
The remainder is 0 after subtracting 9 from 9.
Grab the next digit (3) from the dividend, add it to 0, then carry on: 3 / 1

On to step 5:
3 divided by 1 is 3 with a remainder of 0.
Record the quotient 3 as the next digit in the result. 
Result so far: 39893.0
If we subtract 3 from 3, we get 0.
Append the next digit (4) from the dividend to 0 and continue with: 4 / 1

Moving on to step 6:
The number 1 fits into 4 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 398934.0
Subtracting 4 from 4 leaves us 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.

Moving on to step 7:
0 divided by 1 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 398934.0
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.

Going ahead to step 8:
The number 1 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 398934.0
Subtracting 0 from 0 leaves us 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.

The quotient of the division is 398934.0, and the remainder is 0.0.