Let's divide 424423 by 45
The aim is to understand the frequency of 45 in 424423.

Moving on to step 1:
4 divided by 45 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 45

On to step 2:
When dividing 42 by 45, we get 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 42, we end up with 42.
Take the next digit (4) from the dividend and append it to 42, then repeat: 424 / 45

Let's proceed to step 3:
424 divided by 45 is 9 with a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Subtract 405 from 424 to get 19.
Grab the next digit (4) from the dividend, add it to 19, then carry on: 194 / 45

Step 4:
45 can be fit into 194 4 times, resulting in a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 94.0
Subtract 180 from 194 to get 14.
Append the next digit (2) from the dividend to 14 and continue with: 142 / 45

On to step 5:
If we divide 142 by 45, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 943.0
If we subtract 135 from 142, we get 7.
Bring next digit (3) of the dividend behind the 7 and repeat the process: 73 / 45

Advancing to step 6:
45 goes into 73 1 times with a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 9431.0
If we subtract 45 from 73, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Moving on to step 7:
When dividing 280 by 45, we get 6 with a remainder of 10.
Put 6 as the next digit of the answer. 
Result so far: 9431.6
Subtract 270 from 280 to 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.

Advancing to step 8:
When dividing 100 by 45, we get 2 with a remainder of 10.
Record the quotient 2 as the next digit in the result. 
Result so far: 9431.62
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.

Step 9:
45 goes into 100 2 times with a remainder of 10.
Write down 2 as next digit of the result. 
Result so far: 9431.622
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.

Our division results in 9431.622 with a remaining 0.001.