We look at the division of 333812 by 45 
The aim is to understand the frequency of 45 in 333812.

Going ahead to step 1:
3 divided by 45 is 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 45

Step 2:
45 goes into 33 0 times with a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 33 after subtracting 0 from 33.
Fetch the next digit (3) from the dividend, attach it to 33 and continue: 333 / 45

Step 3:
45 goes into 333 7 times with a remainder of 18.
Record the quotient 7 as the next digit in the result. 
Result so far: 7.0
Deduct 315 from 333 and we're left with 18.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 45

Let's proceed to step 4:
If we divide 188 by 45, we get 4 and a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 74.0
If we take 180 away from 188, we end up with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 45

Advancing to step 5:
81 divided by 45 is 1 with a remainder of 36.
The number 1 becomes the next digit in our result. 
Result so far: 741.0
Subtract 45 from 81 to get 36.
Append the next digit (2) from the dividend to 36 and continue with: 362 / 45

Advancing to step 6:
When dividing 362 by 45, we get 8 with a remainder of 2.
Record the quotient 8 as the next digit in the result. 
Result so far: 7418.0
If we take 360 away from 362, 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.

Going ahead to step 7:
The number 45 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 7418.0
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 8:
If we divide 200 by 45, we get 4 and a remainder of 20.
The next digit of our result is 4. 
Result so far: 7418.04
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
45 goes into 200 4 times with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 7418.044
If we subtract 180 from 200, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 7418.044, and the remainder is 0.002.