We look at the division of 653511 by 45 
The aim is to understand the frequency of 45 in 653511.

Going ahead to step 1:
6 divided by 45 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (5) from the dividend to 6 and continue with: 65 / 45

Let's proceed to step 2:
65 divided by 45 is 1 with a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 45 away from 65, we end up with 20.
Include the next digit (3) from the dividend after 20, then repeat: 203 / 45

Going ahead to step 3:
45 can be fit into 203 4 times, resulting in a remainder of 23.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
If we take 180 away from 203, we end up with 23.
Fetch the next digit (5) from the dividend, attach it to 23 and continue: 235 / 45

Step 4:
235 divided by 45 is 5 with a remainder of 10.
The next digit of our result is 5. 
Result so far: 145.0
Subtract 225 from 235 to get 10.
Include the next digit (1) from the dividend after 10, then repeat: 101 / 45

Moving on to step 5:
The number 45 fits into 101 2 times, leaving a remainder of 11.
Write down 2 as next digit of the result. 
Result so far: 1452.0
Subtract 90 from 101 to get 11.
Append the next digit (1) from the dividend to 11 and continue with: 111 / 45

Going ahead to step 6:
45 can be fit into 111 2 times, resulting in a remainder of 21.
The next digit of our result is 2. 
Result so far: 14522.0
The remainder is 21 after subtracting 90 from 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 7:
45 goes into 210 4 times with a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 14522.4
If we subtract 180 from 210, 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:
The number 45 fits into 300 6 times, leaving a remainder of 30.
Write down 6 as next digit of the result. 
Result so far: 14522.46
If we take 270 away from 300, we end up 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.

Let's proceed to step 9:
300 divided by 45 is 6 with a remainder of 30.
Use 6 as the next digit of our solution. 
Result so far: 14522.466
If we take 270 away from 300, we end up 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.

Our division results in 14522.466 with a remaining 0.003.