503959 ÷ 6 
Let's see how many times 6 fits into 503959.

On to step 1:
The number 6 fits into 5 0 times, leaving a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Append the next digit (0) from the dividend to 5 and continue with: 50 / 6

Going ahead to step 2:
50 divided by 6 is 8 with a remainder of 2.
The next digit of our result is 8. 
Result so far: 8.0
Deduct 48 from 50 and we're left with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 6

Moving on to step 3:
23 divided by 6 is 3 with a remainder of 5.
Record the quotient 3 as the next digit in the result. 
Result so far: 83.0
If we subtract 18 from 23, we get 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 6

Step 4:
The number 6 fits into 59 9 times, leaving a remainder of 5.
Put 9 as the next digit of the answer. 
Result so far: 839.0
If we take 54 away from 59, we end up with 5.
Bring next digit (5) of the dividend behind the 5 and repeat the process: 55 / 6

Step 5:
6 goes into 55 9 times with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 8399.0
The remainder is 1 after subtracting 54 from 55.
Include the next digit (9) from the dividend after 1, then repeat: 19 / 6

On to step 6:
6 can be fit into 19 3 times, resulting in a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 83993.0
The remainder is 1 after subtracting 18 from 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
10 divided by 6 is 1 with a remainder of 4.
The next digit of our result is 1. 
Result so far: 83993.1
Subtracting 6 from 10 leaves us 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.

Going ahead to step 8:
40 divided by 6 is 6 with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 83993.16
Subtract 36 from 40 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
6 can be fit into 40 6 times, resulting in a remainder of 4.
The next digit of our result is 6. 
Result so far: 83993.166
If we take 36 away from 40, 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.

Our division results in 83993.166 with a remaining 0.0004.