303384 ÷ 45 
The aim is to understand the frequency of 45 in 303384.

Advancing to step 1:
If we divide 3 by 45, we get 0 and a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 45

Let's proceed to step 2:
45 goes into 30 0 times with a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Append the next digit (3) from the dividend to 30 and continue with: 303 / 45

Going ahead to step 3:
45 goes into 303 6 times with a remainder of 33.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
If we take 270 away from 303, we end up with 33.
Grab the next digit (3) from the dividend, add it to 33, then carry on: 333 / 45

Moving on to step 4:
333 divided by 45 is 7 with a remainder of 18.
The number 7 becomes the next digit in our result. 
Result so far: 67.0
If we take 315 away from 333, we end up with 18.
Fetch the next digit (8) from the dividend, attach it to 18 and continue: 188 / 45

Step 5:
The number 45 fits into 188 4 times, leaving a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 674.0
Deduct 180 from 188 and we're left with 8.
Bring next digit (4) of the dividend behind the 8 and repeat the process: 84 / 45

On to step 6:
If we divide 84 by 45, we get 1 and a remainder of 39.
The next digit of our result is 1. 
Result so far: 6741.0
Subtract 45 from 84 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 7:
45 goes into 390 8 times with a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 6741.8
If we subtract 360 from 390, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 8:
45 can be fit into 300 6 times, resulting in a remainder of 30.
Record the quotient 6 as the next digit in the result. 
Result so far: 6741.86
Deduct 270 from 300 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
300 divided by 45 is 6 with a remainder of 30.
The number 6 becomes the next digit in our result. 
Result so far: 6741.866
Subtract 270 from 300 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final result is 6741.866 with a remainder of 0.003.