66998 divided by 45 
The aim is to understand the frequency of 45 in 66998.

Moving on to step 1:
45 can be fit into 6 0 times, resulting in a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 45

On to step 2:
45 goes into 66 1 times with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 21 after subtracting 45 from 66.
Bring next digit (9) of the dividend behind the 21 and repeat the process: 219 / 45

Advancing to step 3:
The number 45 fits into 219 4 times, leaving a remainder of 39.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Subtracting 180 from 219 leaves us with 39.
Append the next digit (9) from the dividend to 39 and continue with: 399 / 45

Going ahead to step 4:
45 can be fit into 399 8 times, resulting in a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 148.0
If we take 360 away from 399, we end up with 39.
Bring next digit (8) of the dividend behind the 39 and repeat the process: 398 / 45

Let's proceed to step 5:
The number 45 fits into 398 8 times, leaving a remainder of 38.
The number 8 becomes the next digit in our result. 
Result so far: 1488.0
If we take 360 away from 398, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 6:
45 goes into 380 8 times with a remainder of 20.
Use 8 as the next digit of our solution. 
Result so far: 1488.8
Subtracting 360 from 380 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 7:
If we divide 200 by 45, we get 4 and a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 1488.84
Subtract 180 from 200 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 8:
200 divided by 45 is 4 with a remainder of 20.
Use 4 as the next digit of our solution. 
Result so far: 1488.844
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 1488.844 with a remainder of 0.002.