We're dividing 204043 by 45 
The aim is to understand the frequency of 45 in 204043.

Step 1:
If we divide 2 by 45, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (0) from the dividend, attach it to 2 and continue: 20 / 45

Let's proceed to step 2:
The number 45 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Bring next digit (4) of the dividend behind the 20 and repeat the process: 204 / 45

Step 3:
204 divided by 45 is 4 with a remainder of 24.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 180 from 204 to get 24.
Include the next digit (0) from the dividend after 24, then repeat: 240 / 45

Going ahead to step 4:
240 divided by 45 is 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 45.0
If we take 225 away from 240, we end up with 15.
Grab the next digit (4) from the dividend, add it to 15, then carry on: 154 / 45

Step 5:
154 divided by 45 is 3 with a remainder of 19.
Write down 3 as next digit of the result. 
Result so far: 453.0
The remainder is 19 after subtracting 135 from 154.
Grab the next digit (3) from the dividend, add it to 19, then carry on: 193 / 45

On to step 6:
When dividing 193 by 45, we get 4 with a remainder of 13.
Write down 4 as next digit of the result. 
Result so far: 4534.0
If we take 180 away from 193, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 7:
45 can be fit into 130 2 times, resulting in a remainder of 40.
Use 2 as the next digit of our solution. 
Result so far: 4534.2
The remainder is 40 after subtracting 90 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
45 goes into 400 8 times with a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 4534.28
If we take 360 away from 400, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 9:
45 can be fit into 400 8 times, resulting in a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 4534.288
Subtract 360 from 400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Our division results in 4534.288 with a remaining 0.004.