405360 divided by 9 
We're looking to find how many times 9 goes into 405360.

On to step 1:
If we divide 4 by 9, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 9

Moving on to step 2:
The number 9 fits into 40 4 times, leaving a remainder of 4.
Put 4 as the next digit of the answer. 
Result so far: 4.0
If we take 36 away from 40, we end up with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 9

On to step 3:
The number 9 fits into 45 5 times, leaving a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 45.0
The remainder is 0 after subtracting 45 from 45.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 9

Step 4:
9 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 450.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (6) from the dividend to 3 and continue with: 36 / 9

On to step 5:
The number 9 fits into 36 4 times, leaving a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 4504.0
Deduct 36 from 36 and we're left with 0.
Take the next digit (0) from the dividend and append it to 0, then repeat: 0 / 9

On to step 6:
0 divided by 9 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 45040.0
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.

Step 7:
0 divided by 9 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 45040.0
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.

On to step 8:
If we divide 0 by 9, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 45040.0
If we subtract 0 from 0, 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.

The final outcome is 45040.0, with a leftover of 0.0.