We look at the division of 42249 by 49 
The aim is to understand the frequency of 49 in 42249.

Going ahead to step 1:
4 divided by 49 is 0 with a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 49

Step 2:
49 can be fit into 42 0 times, resulting in a remainder of 42.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Take the next digit (2) from the dividend and append it to 42, then repeat: 422 / 49

Step 3:
If we divide 422 by 49, we get 8 and a remainder of 30.
The next digit of our result is 8. 
Result so far: 8.0
If we subtract 392 from 422, we get 30.
Take the next digit (4) from the dividend and append it to 30, then repeat: 304 / 49

Going ahead to step 4:
The number 49 fits into 304 6 times, leaving a remainder of 10.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
If we subtract 294 from 304, we get 10.
Bring next digit (9) of the dividend behind the 10 and repeat the process: 109 / 49

Moving on to step 5:
When dividing 109 by 49, we get 2 with a remainder of 11.
The next digit of our result is 2. 
Result so far: 862.0
Subtract 98 from 109 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 6:
The number 49 fits into 110 2 times, leaving a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 862.2
If we subtract 98 from 110, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 7:
If we divide 120 by 49, we get 2 and a remainder of 22.
The next digit of our result is 2. 
Result so far: 862.22
If we subtract 98 from 120, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Our division results in 862.22 with a remaining 0.022.