Let's divide 386333 by 3
The aim is to understand the frequency of 3 in 386333.

Advancing to step 1:
3 can be fit into 3 1 times, resulting in a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 3 away from 3, we end up with 0.
Take the next digit (8) from the dividend and append it to 0, then repeat: 8 / 3

Step 2:
8 divided by 3 is 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we subtract 6 from 8, we get 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 3

Going ahead to step 3:
When dividing 26 by 3, we get 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 128.0
Deduct 24 from 26 and we're left with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 3

Moving on to step 4:
The number 3 fits into 23 7 times, leaving a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 1287.0
Subtract 21 from 23 to get 2.
Include the next digit (3) from the dividend after 2, then repeat: 23 / 3

Step 5:
When dividing 23 by 3, we get 7 with a remainder of 2.
The number 7 becomes the next digit in our result. 
Result so far: 12877.0
The remainder is 2 after subtracting 21 from 23.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 3

Advancing to step 6:
3 goes into 23 7 times with a remainder of 2.
The next digit of our result is 7. 
Result so far: 128777.0
Deduct 21 from 23 and we're left 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.

Advancing to step 7:
20 divided by 3 is 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 128777.6
If we subtract 18 from 20, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
20 divided by 3 is 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 128777.66
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 final result is 128777.66 with a remainder of 0.002.