We look at the division of 503048 by 3 
Our goal is to divide 503048 by 3.

On to step 1:
The number 3 fits into 5 1 times, leaving a remainder of 2.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 3 from 5 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 3

Moving on to step 2:
20 divided by 3 is 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 16.0
The remainder is 2 after subtracting 18 from 20.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 3

Going ahead to step 3:
The number 3 fits into 23 7 times, leaving a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 167.0
If we subtract 21 from 23, we get 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 3

Advancing to step 4:
If we divide 20 by 3, we get 6 and a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 1676.0
If we subtract 18 from 20, we get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 3

Step 5:
24 divided by 3 is 8 with a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 16768.0
Subtract 24 from 24 to get 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 3

Moving on to step 6:
The number 3 fits into 8 2 times, leaving a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 167682.0
The remainder is 2 after subtracting 6 from 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
20 divided by 3 is 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 167682.6
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
When dividing 20 by 3, we get 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 167682.66
Subtracting 18 from 20 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The quotient of the division is 167682.66, and the remainder is 0.002.