Let's divide 663341 by 3
The aim is to understand the frequency of 3 in 663341.

Let's proceed to step 1:
The number 3 fits into 6 2 times, leaving a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 0 after subtracting 6 from 6.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 3

On to step 2:
When dividing 6 by 3, we get 2 with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 22.0
Subtract 6 from 6 to get 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 3

Let's proceed to step 3:
If we divide 3 by 3, we get 1 and a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 221.0
If we subtract 3 from 3, we get 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 3

Let's proceed to step 4:
When dividing 3 by 3, we get 1 with a remainder of 0.
Put 1 as the next digit of the answer. 
Result so far: 2211.0
Deduct 3 from 3 and we're left with 0.
Bring next digit (4) of the dividend behind the 0 and repeat the process: 4 / 3

Moving on to step 5:
When dividing 4 by 3, we get 1 with a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 22111.0
The remainder is 1 after subtracting 3 from 4.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 3

Advancing to step 6:
3 can be fit into 11 3 times, resulting in a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 221113.0
If we take 9 away from 11, 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 7:
3 can be fit into 20 6 times, resulting in a remainder of 2.
The next digit of our result is 6. 
Result so far: 221113.6
The remainder is 2 after subtracting 18 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 8:
20 divided by 3 is 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 221113.66
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.

In conclusion, the division gives 221113.66 with a balance of 0.002.