We divide 577888 by 45
The aim is to understand the frequency of 45 in 577888.

Let's proceed to step 1:
If we divide 5 by 45, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 45

Moving on to step 2:
The number 45 fits into 57 1 times, leaving a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 45 from 57, we get 12.
Include the next digit (7) from the dividend after 12, then repeat: 127 / 45

Let's proceed to step 3:
The number 45 fits into 127 2 times, leaving a remainder of 37.
The next digit of our result is 2. 
Result so far: 12.0
Subtracting 90 from 127 leaves us with 37.
Grab the next digit (8) from the dividend, add it to 37, then carry on: 378 / 45

Moving on to step 4:
378 divided by 45 is 8 with a remainder of 18.
Record the quotient 8 as the next digit in the result. 
Result so far: 128.0
Deduct 360 from 378 and we're left with 18.
Include the next digit (8) from the dividend after 18, then repeat: 188 / 45

On to step 5:
45 can be fit into 188 4 times, resulting in a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 1284.0
If we take 180 away from 188, we end up with 8.
Bring next digit (8) of the dividend behind the 8 and repeat the process: 88 / 45

On to step 6:
When dividing 88 by 45, we get 1 with a remainder of 43.
Record the quotient 1 as the next digit in the result. 
Result so far: 12841.0
The remainder is 43 after subtracting 45 from 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 7:
45 goes into 430 9 times with a remainder of 25.
The next digit of our result is 9. 
Result so far: 12841.9
Subtracting 405 from 430 leaves us with 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:
45 goes into 250 5 times with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 12841.95
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.

On to step 9:
45 goes into 250 5 times with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 12841.955
If we take 225 away from 250, we end up with 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 result is 12841.955 with a remainder of 0.0025.