393490 divided by 9 
Let's see how many times 9 fits into 393490.

On to step 1:
9 can be fit into 3 0 times, resulting in a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 9

Advancing to step 2:
When dividing 39 by 9, we get 4 with 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.
Bring next digit (3) of the dividend behind the 3 and repeat the process: 33 / 9

Step 3:
If we divide 33 by 9, we get 3 and a remainder of 6.
Record the quotient 3 as the next digit in the result. 
Result so far: 43.0
If we subtract 27 from 33, we get 6.
Include the next digit (4) from the dividend after 6, then repeat: 64 / 9

Moving on to step 4:
If we divide 64 by 9, we get 7 and a remainder of 1.
Use 7 as the next digit of our solution. 
Result so far: 437.0
Deduct 63 from 64 and we're left with 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 9

Going ahead to step 5:
If we divide 19 by 9, we get 2 and a remainder of 1.
The next digit of our result is 2. 
Result so far: 4372.0
Subtracting 18 from 19 leaves us with 1.
Include the next digit (0) from the dividend after 1, then repeat: 10 / 9

On to step 6:
If we divide 10 by 9, we get 1 and a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 43721.0
If we subtract 9 from 10, we get 1.
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:
The number 9 fits into 10 1 times, leaving a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 43721.1
If we take 9 away from 10, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 8:
9 can be fit into 10 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 43721.11
Subtract 9 from 10 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

After the division, we end up with 43721.11 and a remainder of 0.001.