We divide 39383 by 3
The aim is to understand the frequency of 3 in 39383.

Let's proceed 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
Deduct 3 from 3 and we're left with 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 3

Advancing to step 2:
When dividing 9 by 3, we get 3 with a remainder of 0.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 9 from 9 and we're left with 0.
Include the next digit (3) from the dividend after 0, then repeat: 3 / 3

Moving on to step 3:
If we divide 3 by 3, we get 1 and a remainder of 0.
Write down 1 as next digit of the result. 
Result so far: 131.0
Subtract 3 from 3 to get 0.
Bring next digit (8) of the dividend behind the 0 and repeat the process: 8 / 3

Going ahead to step 4:
3 goes into 8 2 times with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 1312.0
If we subtract 6 from 8, we get 2.
Grab the next digit (3) from the dividend, add it to 2, then carry on: 23 / 3

Moving on to step 5:
When dividing 23 by 3, we get 7 with a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 13127.0
Subtract 21 from 23 to 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.

Step 6:
3 goes into 20 6 times with a remainder of 2.
The next digit of our result is 6. 
Result so far: 13127.6
Subtract 18 from 20 to 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.

Advancing to step 7:
When dividing 20 by 3, we get 6 with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 13127.66
Subtract 18 from 20 to 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.

After the division, we end up with 13127.66 and a remainder of 0.002.