We look at the division of 920473 by 45 
The aim is to understand the frequency of 45 in 920473.

Step 1:
The number 45 fits into 9 0 times, leaving a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Bring next digit (2) of the dividend behind the 9 and repeat the process: 92 / 45

On to step 2:
92 divided by 45 is 2 with a remainder of 2.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 90 from 92 leaves us with 2.
Append the next digit (0) from the dividend to 2 and continue with: 20 / 45

Let's proceed to step 3:
The number 45 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 20.0
If we subtract 0 from 20, we get 20.
Take the next digit (4) from the dividend and append it to 20, then repeat: 204 / 45

Let's proceed to step 4:
204 divided by 45 is 4 with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 204.0
Subtracting 180 from 204 leaves us with 24.
Take the next digit (7) from the dividend and append it to 24, then repeat: 247 / 45

Moving on to step 5:
When dividing 247 by 45, we get 5 with a remainder of 22.
Record the quotient 5 as the next digit in the result. 
Result so far: 2045.0
Deduct 225 from 247 and we're left with 22.
Bring next digit (3) of the dividend behind the 22 and repeat the process: 223 / 45

Going ahead to step 6:
When dividing 223 by 45, we get 4 with a remainder of 43.
Record the quotient 4 as the next digit in the result. 
Result so far: 20454.0
Subtracting 180 from 223 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 7:
45 can be fit into 430 9 times, resulting in a remainder of 25.
Use 9 as the next digit of our solution. 
Result so far: 20454.9
If we subtract 405 from 430, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 8:
If we divide 250 by 45, we get 5 and a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 20454.95
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 9:
If we divide 250 by 45, we get 5 and a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 20454.955
If we subtract 225 from 250, we get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

The quotient of the division is 20454.955, and the remainder is 0.0025.