We're dividing 398664 by 48 
Let's see how many times 48 fits into 398664.

Advancing to step 1:
The number 48 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 48

Moving on to step 2:
The number 48 fits into 39 0 times, leaving a remainder of 39.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Take the next digit (8) from the dividend and append it to 39, then repeat: 398 / 48

Advancing to step 3:
The number 48 fits into 398 8 times, leaving a remainder of 14.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Deduct 384 from 398 and we're left with 14.
Append the next digit (6) from the dividend to 14 and continue with: 146 / 48

Step 4:
If we divide 146 by 48, we get 3 and a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 83.0
Deduct 144 from 146 and we're left with 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 48

Advancing to step 5:
The number 48 fits into 26 0 times, leaving a remainder of 26.
Use 0 as the next digit of our solution. 
Result so far: 830.0
Deduct 0 from 26 and we're left with 26.
Include the next digit (4) from the dividend after 26, then repeat: 264 / 48

On to step 6:
If we divide 264 by 48, we get 5 and a remainder of 24.
Write down 5 as next digit of the result. 
Result so far: 8305.0
If we subtract 240 from 264, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 7:
240 divided by 48 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 8305.5
Subtract 240 from 240 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.

Moving on to step 8:
48 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 8305.5
If we take 0 away from 0, we end up 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.

Step 9:
If we divide 0 by 48, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 8305.5
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.

Our division results in 8305.5 with a remaining 0.0.