We divide 258492 by 3
The aim is to understand the frequency of 3 in 258492.

Going ahead to step 1:
If we divide 2 by 3, we get 0 and a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Fetch the next digit (5) from the dividend, attach it to 2 and continue: 25 / 3

On to step 2:
25 divided by 3 is 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 8.0
Deduct 24 from 25 and we're left with 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 3

On to step 3:
If we divide 18 by 3, we get 6 and a remainder of 0.
Use 6 as the next digit of our solution. 
Result so far: 86.0
Deduct 18 from 18 and we're left with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 3

On to step 4:
3 can be fit into 4 1 times, resulting in a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 861.0
The remainder is 1 after subtracting 3 from 4.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 3

On to step 5:
The number 3 fits into 19 6 times, leaving a remainder of 1.
The next digit of our result is 6. 
Result so far: 8616.0
If we subtract 18 from 19, we get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 3

Moving on to step 6:
When dividing 12 by 3, we get 4 with a remainder of 0.
The number 4 becomes the next digit in our result. 
Result so far: 86164.0
Deduct 12 from 12 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 7:
If we divide 0 by 3, we get 0 and a remainder of 0.
The next digit of our result is 0. 
Result so far: 86164.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 3, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 86164.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 86164.0 with a remainder of 0.0.