204874 ÷ 3 
The aim is to understand the frequency of 3 in 204874.

Going ahead to step 1:
3 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 3

Going ahead to step 2:
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: 6.0
The remainder is 2 after subtracting 18 from 20.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 3

Step 3:
3 can be fit into 24 8 times, resulting in a remainder of 0.
Write down 8 as next digit of the result. 
Result so far: 68.0
The remainder is 0 after subtracting 24 from 24.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 3

Advancing to step 4:
When dividing 8 by 3, we get 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 682.0
If we subtract 6 from 8, we get 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 3

On to step 5:
3 goes into 27 9 times with a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 6829.0
If we subtract 27 from 27, we get 0.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 3

Going ahead to step 6:
4 divided by 3 is 1 with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 68291.0
Deduct 3 from 4 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 7:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 68291.3
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.

Going ahead to step 8:
The number 3 fits into 10 3 times, leaving a remainder of 1.
Record the quotient 3 as the next digit in the result. 
Result so far: 68291.33
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.

Our division results in 68291.33 with a remaining 0.001.