We look at the division of 450735 by 3 
The aim is to understand the frequency of 3 in 450735.

Advancing to step 1:
3 can be fit into 4 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 3 away from 4, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 3

Step 2:
When dividing 15 by 3, we get 5 with a remainder of 0.
The next digit of our result is 5. 
Result so far: 15.0
Subtract 15 from 15 to get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 3

Let's proceed to step 3:
When dividing 0 by 3, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 150.0
The remainder is 0 after subtracting 0 from 0.
Append the next digit (7) from the dividend to 0 and continue with: 7 / 3

Let's proceed to step 4:
3 goes into 7 2 times with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 1502.0
The remainder is 1 after subtracting 6 from 7.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 3

Step 5:
The number 3 fits into 13 4 times, leaving a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 15024.0
If we subtract 12 from 13, we get 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 3

Advancing to step 6:
When dividing 15 by 3, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 150245.0
Deduct 15 from 15 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.

On to step 7:
The number 3 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 150245.0
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.

Let's proceed to step 8:
The number 3 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 150245.0
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.

The final outcome is 150245.0, with a leftover of 0.0.