We look at the division of 456351 by 9 
Let's see how many times 9 fits into 456351.

On to step 1:
4 divided by 9 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Grab the next digit (5) from the dividend, add it to 4, then carry on: 45 / 9

Moving on to step 2:
If we divide 45 by 9, we get 5 and a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 5.0
Subtracting 45 from 45 leaves us with 0.
Include the next digit (6) from the dividend after 0, then repeat: 6 / 9

Advancing to step 3:
The number 9 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 50.0
If we subtract 0 from 6, we get 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 9

On to step 4:
63 divided by 9 is 7 with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 507.0
Deduct 63 from 63 and we're left with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 9

Advancing to step 5:
5 divided by 9 is 0 with a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 5070.0
If we subtract 0 from 5, we get 5.
Include the next digit (1) from the dividend after 5, then repeat: 51 / 9

Advancing to step 6:
51 divided by 9 is 5 with a remainder of 6.
Write down 5 as next digit of the result. 
Result so far: 50705.0
Deduct 45 from 51 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
60 divided by 9 is 6 with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 50705.6
If we take 54 away from 60, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
9 goes into 60 6 times with a remainder of 6.
The next digit of our result is 6. 
Result so far: 50705.66
If we subtract 54 from 60, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final outcome is 50705.66, with a leftover of 0.006.