We look at the division of 49028 by 45 
The aim is to understand the frequency of 45 in 49028.

Going ahead to step 1:
If we divide 4 by 45, we get 0 and a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 45

On to step 2:
45 goes into 49 1 times with a remainder of 4.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 45 from 49 to get 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 45

Going ahead to step 3:
45 goes into 40 0 times with a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 10.0
If we subtract 0 from 40, we get 40.
Include the next digit (2) from the dividend after 40, then repeat: 402 / 45

On to step 4:
45 goes into 402 8 times with a remainder of 42.
The number 8 becomes the next digit in our result. 
Result so far: 108.0
The remainder is 42 after subtracting 360 from 402.
Bring next digit (8) of the dividend behind the 42 and repeat the process: 428 / 45

Step 5:
When dividing 428 by 45, we get 9 with a remainder of 23.
The next digit of our result is 9. 
Result so far: 1089.0
Subtract 405 from 428 to get 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 6:
230 divided by 45 is 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 1089.5
Deduct 225 from 230 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.

Step 7:
50 divided by 45 is 1 with a remainder of 5.
Record the quotient 1 as the next digit in the result. 
Result so far: 1089.51
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.

Let's proceed to step 8:
If we divide 50 by 45, we get 1 and a remainder of 5.
The next digit of our result is 1. 
Result so far: 1089.511
If we subtract 45 from 50, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

After the division, we end up with 1089.511 and a remainder of 0.0005.