We look at the division of 309283 by 3 
We want to divide 309283 by 3.

On to step 1:
3 divided by 3 is 1 with a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 3 from 3 to get 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 3

On to step 2:
When dividing 0 by 3, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 0 to get 0.
Bring next digit (9) of the dividend behind the 0 and repeat the process: 9 / 3

On to step 3:
9 divided by 3 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 103.0
Deduct 9 from 9 and we're left with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 3

Going ahead to step 4:
3 goes into 2 0 times with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 1030.0
If we take 0 away from 2, we end up with 2.
Append the next digit (8) from the dividend to 2 and continue with: 28 / 3

On to step 5:
28 divided by 3 is 9 with a remainder of 1.
Put 9 as the next digit of the answer. 
Result so far: 10309.0
Subtract 27 from 28 to get 1.
Fetch the next digit (3) from the dividend, attach it to 1 and continue: 13 / 3

Going ahead to step 6:
If we divide 13 by 3, we get 4 and a remainder of 1.
Write down 4 as next digit of the result. 
Result so far: 103094.0
The remainder is 1 after subtracting 12 from 13.
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:
When dividing 10 by 3, we get 3 with a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 103094.3
Deduct 9 from 10 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 8:
3 goes into 10 3 times with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 103094.33
If we take 9 away from 10, we end up with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final result is 103094.33 with a remainder of 0.001.