We look at the division of 649349 by 3 
The aim is to understand the frequency of 3 in 649349.

Let's proceed to step 1:
3 can be fit into 6 2 times, resulting in a remainder of 0.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 0 after subtracting 6 from 6.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 3

Advancing to step 2:
The number 3 fits into 4 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we take 3 away from 4, we end up with 1.
Grab the next digit (9) from the dividend, add it to 1, then carry on: 19 / 3

Advancing to step 3:
The number 3 fits into 19 6 times, leaving a remainder of 1.
The number 6 becomes the next digit in our result. 
Result so far: 216.0
If we subtract 18 from 19, we get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 3

Going ahead to step 4:
If we divide 13 by 3, we get 4 and a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 2164.0
If we take 12 away from 13, we end up with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 3

Advancing to step 5:
When dividing 14 by 3, we get 4 with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 21644.0
Subtract 12 from 14 to get 2.
Bring next digit (9) of the dividend behind the 2 and repeat the process: 29 / 3

On to step 6:
3 can be fit into 29 9 times, resulting in a remainder of 2.
Put 9 as the next digit of the answer. 
Result so far: 216449.0
The remainder is 2 after subtracting 27 from 29.
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:
3 can be fit into 20 6 times, resulting in a remainder of 2.
Put 6 as the next digit of the answer. 
Result so far: 216449.6
If we take 18 away from 20, we end up 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.

Let's proceed to step 8:
If we divide 20 by 3, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 216449.66
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.

The final result is 216449.66 with a remainder of 0.002.