We look at the division of 576883 by 45 
The aim is to understand the frequency of 45 in 576883.

Advancing to step 1:
If we divide 5 by 45, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (7) of the dividend behind the 5 and repeat the process: 57 / 45

On to step 2:
When dividing 57 by 45, we get 1 with a remainder of 12.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 12 after subtracting 45 from 57.
Include the next digit (6) from the dividend after 12, then repeat: 126 / 45

Advancing to step 3:
The number 45 fits into 126 2 times, leaving a remainder of 36.
Write down 2 as next digit of the result. 
Result so far: 12.0
Deduct 90 from 126 and we're left with 36.
Grab the next digit (8) from the dividend, add it to 36, then carry on: 368 / 45

Going ahead to step 4:
45 goes into 368 8 times with a remainder of 8.
The next digit of our result is 8. 
Result so far: 128.0
Deduct 360 from 368 and we're left with 8.
Append the next digit (8) from the dividend to 8 and continue with: 88 / 45

Going ahead to step 5:
88 divided by 45 is 1 with a remainder of 43.
The next digit of our result is 1. 
Result so far: 1281.0
The remainder is 43 after subtracting 45 from 88.
Fetch the next digit (3) from the dividend, attach it to 43 and continue: 433 / 45

Moving on to step 6:
When dividing 433 by 45, we get 9 with a remainder of 28.
Put 9 as the next digit of the answer. 
Result so far: 12819.0
If we subtract 405 from 433, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 7:
45 goes into 280 6 times with a remainder of 10.
Write down 6 as next digit of the result. 
Result so far: 12819.6
If we subtract 270 from 280, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 8:
45 goes into 100 2 times with a remainder of 10.
The number 2 becomes the next digit in our result. 
Result so far: 12819.62
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 9:
45 goes into 100 2 times with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 12819.622
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

In conclusion, the division gives 12819.622 with a balance of 0.001.