We divide 597220 by 45
The aim is to understand the frequency of 45 in 597220.

Going ahead to step 1:
When dividing 5 by 45, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (9) from the dividend and append it to 5, then repeat: 59 / 45

Going ahead to step 2:
45 can be fit into 59 1 times, resulting in a remainder of 14.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 45 away from 59, we end up with 14.
Fetch the next digit (7) from the dividend, attach it to 14 and continue: 147 / 45

Step 3:
147 divided by 45 is 3 with a remainder of 12.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Subtract 135 from 147 to get 12.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 45

Let's proceed to step 4:
The number 45 fits into 122 2 times, leaving a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 132.0
If we subtract 90 from 122, we get 32.
Include the next digit (2) from the dividend after 32, then repeat: 322 / 45

Step 5:
When dividing 322 by 45, we get 7 with a remainder of 7.
Record the quotient 7 as the next digit in the result. 
Result so far: 1327.0
If we take 315 away from 322, we end up with 7.
Append the next digit (0) from the dividend to 7 and continue with: 70 / 45

Step 6:
45 goes into 70 1 times with a remainder of 25.
Write down 1 as next digit of the result. 
Result so far: 13271.0
The remainder is 25 after subtracting 45 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 7:
250 divided by 45 is 5 with a remainder of 25.
The number 5 becomes the next digit in our result. 
Result so far: 13271.5
Subtract 225 from 250 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 8:
When dividing 250 by 45, we get 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 13271.55
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The final outcome is 13271.55, with a leftover of 0.025.