We're dividing 89663 by 45 
The aim is to understand the frequency of 45 in 89663.

Step 1:
8 divided by 45 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 45

Moving on to step 2:
89 divided by 45 is 1 with a remainder of 44.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 45 from 89, we get 44.
Include the next digit (6) from the dividend after 44, then repeat: 446 / 45

Let's proceed to step 3:
45 goes into 446 9 times with a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 19.0
Deduct 405 from 446 and we're left with 41.
Take the next digit (6) from the dividend and append it to 41, then repeat: 416 / 45

Moving on to step 4:
45 goes into 416 9 times with a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 199.0
Deduct 405 from 416 and we're left with 11.
Bring next digit (3) of the dividend behind the 11 and repeat the process: 113 / 45

On to step 5:
45 goes into 113 2 times with a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 1992.0
If we take 90 away from 113, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Advancing to step 6:
230 divided by 45 is 5 with a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 1992.5
If we take 225 away from 230, 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.

Moving on to step 7:
The number 45 fits into 50 1 times, leaving a remainder of 5.
The next digit of our result is 1. 
Result so far: 1992.51
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.

On to 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: 1992.511
Deduct 45 from 50 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.

The final result is 1992.511 with a remainder of 0.0005.