We're dividing 720977 by 45 
The aim is to understand the frequency of 45 in 720977.

Step 1:
45 goes into 7 0 times with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 45

Let's proceed to step 2:
The number 45 fits into 72 1 times, leaving a remainder of 27.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 45 from 72 leaves us with 27.
Take the next digit (0) from the dividend and append it to 27, then repeat: 270 / 45

On to step 3:
When dividing 270 by 45, we get 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 16.0
Subtract 270 from 270 to get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 45

Moving on to step 4:
9 divided by 45 is 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 160.0
If we take 0 away from 9, we end up with 9.
Grab the next digit (7) from the dividend, add it to 9, then carry on: 97 / 45

Let's proceed to step 5:
45 goes into 97 2 times with a remainder of 7.
The next digit of our result is 2. 
Result so far: 1602.0
The remainder is 7 after subtracting 90 from 97.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 45

Moving on to step 6:
When dividing 77 by 45, we get 1 with a remainder of 32.
The number 1 becomes the next digit in our result. 
Result so far: 16021.0
Subtract 45 from 77 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 7:
45 goes into 320 7 times with a remainder of 5.
Write down 7 as next digit of the result. 
Result so far: 16021.7
Deduct 315 from 320 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
45 can be fit into 50 1 times, resulting in a remainder of 5.
Use 1 as the next digit of our solution. 
Result so far: 16021.71
If we take 45 away from 50, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
If we divide 50 by 45, we get 1 and a remainder of 5.
Put 1 as the next digit of the answer. 
Result so far: 16021.711
Subtracting 45 from 50 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The final result is 16021.711 with a remainder of 0.0005.