We're dividing 503959 by 5 
Let's see how many times 5 fits into 503959.

Advancing to step 1:
When dividing 5 by 5, we get 1 with a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 5 away from 5, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 5

Step 2:
The number 5 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 0 leaves us with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 5

Advancing to step 3:
If we divide 3 by 5, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 100.0
If we subtract 0 from 3, we get 3.
Append the next digit (9) from the dividend to 3 and continue with: 39 / 5

Step 4:
When dividing 39 by 5, we get 7 with a remainder of 4.
The number 7 becomes the next digit in our result. 
Result so far: 1007.0
Subtracting 35 from 39 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 5

Moving on to step 5:
When dividing 45 by 5, we get 9 with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 10079.0
If we take 45 away from 45, we end up with 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 5

Let's proceed to step 6:
9 divided by 5 is 1 with a remainder of 4.
The next digit of our result is 1. 
Result so far: 100791.0
If we take 5 away from 9, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Let's proceed to step 7:
5 can be fit into 40 8 times, resulting in a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 100791.8
Subtracting 40 from 40 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:
The number 5 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 100791.8
Deduct 0 from 0 and we're left 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.

Advancing to step 9:
If we divide 0 by 5, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 100791.8
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 100791.8 with a balance of 0.0.