We're dividing 306868 by 3 
Let's see how many times 3 fits into 306868.

Step 1:
If we divide 3 by 3, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 3 from 3, we get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 3

On to step 2:
When dividing 0 by 3, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 10.0
Subtracting 0 from 0 leaves us with 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 3

Moving on to step 3:
6 divided by 3 is 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 102.0
Subtract 6 from 6 to get 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 3

Advancing to step 4:
8 divided by 3 is 2 with a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 1022.0
Subtract 6 from 8 to get 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 3

On to step 5:
If we divide 26 by 3, we get 8 and a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 10228.0
If we take 24 away from 26, we end up with 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 3

On to step 6:
The number 3 fits into 28 9 times, leaving a remainder of 1.
Write down 9 as next digit of the result. 
Result so far: 102289.0
Subtract 27 from 28 to get 1.
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 3 is 3 with a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 102289.3
The remainder is 1 after subtracting 9 from 10.
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 8:
3 goes into 10 3 times with a remainder of 1.
The next digit of our result is 3. 
Result so far: 102289.33
If we subtract 9 from 10, we get 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 102289.33 with a remainder of 0.001.