We're dividing 407320 by 9 
Let's see how many times 9 fits into 407320.

Let's proceed to step 1:
The number 9 fits into 4 0 times, leaving a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Bring next digit (0) of the dividend behind the 4 and repeat the process: 40 / 9

On to step 2:
The number 9 fits into 40 4 times, leaving a remainder of 4.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 36 from 40 and we're left with 4.
Include the next digit (7) from the dividend after 4, then repeat: 47 / 9

Step 3:
9 can be fit into 47 5 times, resulting in a remainder of 2.
Write down 5 as next digit of the result. 
Result so far: 45.0
Deduct 45 from 47 and we're left with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 9

Moving on to step 4:
9 goes into 23 2 times with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 452.0
Subtract 18 from 23 to get 5.
Append the next digit (2) from the dividend to 5 and continue with: 52 / 9

Going ahead to step 5:
52 divided by 9 is 5 with a remainder of 7.
Put 5 as the next digit of the answer. 
Result so far: 4525.0
The remainder is 7 after subtracting 45 from 52.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 9

On to step 6:
70 divided by 9 is 7 with a remainder of 7.
Put 7 as the next digit of the answer. 
Result so far: 45257.0
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Step 7:
9 goes into 70 7 times with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 45257.7
If we subtract 63 from 70, we get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 8:
9 goes into 70 7 times with a remainder of 7.
Use 7 as the next digit of our solution. 
Result so far: 45257.77
If we take 63 away from 70, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The final outcome is 45257.77, with a leftover of 0.007.