399758 divided by 9 
Our goal is to divide 399758 by 9.

Let's proceed to step 1:
3 divided by 9 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 9

Moving on to step 2:
9 can be fit into 39 4 times, resulting in a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 36 away from 39, we end up with 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 9

Going ahead to step 3:
If we divide 39 by 9, we get 4 and a remainder of 3.
Use 4 as the next digit of our solution. 
Result so far: 44.0
If we take 36 away from 39, we end up with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 9

Going ahead to step 4:
9 goes into 37 4 times with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 444.0
Deduct 36 from 37 and we're left with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 9

Step 5:
9 goes into 15 1 times with a remainder of 6.
Record the quotient 1 as the next digit in the result. 
Result so far: 4441.0
If we subtract 9 from 15, we get 6.
Take the next digit (8) from the dividend and append it to 6, then repeat: 68 / 9

Moving on to step 6:
68 divided by 9 is 7 with a remainder of 5.
Put 7 as the next digit of the answer. 
Result so far: 44417.0
If we subtract 63 from 68, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 7:
9 can be fit into 50 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 44417.5
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 8:
9 can be fit into 50 5 times, resulting in a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 44417.55
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 44417.55, and the remainder is 0.005.