503996 divided by 9 
We're looking to find how many times 9 goes into 503996.

Advancing to step 1:
5 divided by 9 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 9

Let's proceed to step 2:
If we divide 50 by 9, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we subtract 45 from 50, we get 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 9

Advancing to step 3:
9 goes into 53 5 times with a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 55.0
Subtracting 45 from 53 leaves us with 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 9

Advancing to step 4:
89 divided by 9 is 9 with a remainder of 8.
Record the quotient 9 as the next digit in the result. 
Result so far: 559.0
If we take 81 away from 89, we end up with 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 9

Going ahead to step 5:
If we divide 89 by 9, we get 9 and a remainder of 8.
The next digit of our result is 9. 
Result so far: 5599.0
If we take 81 away from 89, we end up with 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 9

Moving on to step 6:
If we divide 86 by 9, we get 9 and a remainder of 5.
The number 9 becomes the next digit in our result. 
Result so far: 55999.0
Subtracting 81 from 86 leaves us 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.

Advancing to step 7:
9 goes into 50 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 55999.5
Subtracting 45 from 50 leaves us 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.

Going ahead to step 8:
If we divide 50 by 9, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 55999.55
Subtracting 45 from 50 leaves us 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 final outcome is 55999.55, with a leftover of 0.005.