We look at the division of 772984 by 45 
The aim is to understand the frequency of 45 in 772984.

Let's proceed to step 1:
7 divided by 45 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 45

Advancing to step 2:
45 can be fit into 77 1 times, resulting in a remainder of 32.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 45 from 77, we get 32.
Include the next digit (2) from the dividend after 32, then repeat: 322 / 45

Advancing to step 3:
When dividing 322 by 45, we get 7 with a remainder of 7.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 315 from 322 and we're left with 7.
Append the next digit (9) from the dividend to 7 and continue with: 79 / 45

On to step 4:
79 divided by 45 is 1 with a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 171.0
The remainder is 34 after subtracting 45 from 79.
Take the next digit (8) from the dividend and append it to 34, then repeat: 348 / 45

Advancing to step 5:
45 can be fit into 348 7 times, resulting in a remainder of 33.
Write down 7 as next digit of the result. 
Result so far: 1717.0
Subtract 315 from 348 to get 33.
Bring next digit (4) of the dividend behind the 33 and repeat the process: 334 / 45

Moving on to step 6:
When dividing 334 by 45, we get 7 with a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 17177.0
Subtract 315 from 334 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 7:
45 can be fit into 190 4 times, resulting in a remainder of 10.
Write down 4 as next digit of the result. 
Result so far: 17177.4
Deduct 180 from 190 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Let's proceed to step 8:
45 goes into 100 2 times with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 17177.42
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.

On to step 9:
45 can be fit into 100 2 times, resulting in a remainder of 10.
Use 2 as the next digit of our solution. 
Result so far: 17177.422
The remainder is 10 after subtracting 90 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 17177.422 with a remainder of 0.001.