We divide 456581 by 3
The aim is to understand the frequency of 3 in 456581.

Step 1:
3 goes into 4 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 3 from 4 leaves us with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 3

Going ahead to step 2:
When dividing 15 by 3, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 15.0
Subtract 15 from 15 to get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 3

On to step 3:
When dividing 6 by 3, we get 2 with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 152.0
Subtracting 6 from 6 leaves us with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 3

Moving on to step 4:
3 can be fit into 5 1 times, resulting in a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 1521.0
Deduct 3 from 5 and we're left with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 3

Step 5:
28 divided by 3 is 9 with a remainder of 1.
Record the quotient 9 as the next digit in the result. 
Result so far: 15219.0
If we subtract 27 from 28, we get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 3

Advancing to step 6:
3 goes into 11 3 times with a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 152193.0
Deduct 9 from 11 and we're left 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.

Advancing to step 7:
3 goes into 20 6 times with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 152193.6
Deduct 18 from 20 and we're left 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.

Moving on to step 8:
The number 3 fits into 20 6 times, leaving a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 152193.66
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.

In conclusion, the division gives 152193.66 with a balance of 0.002.