We're dividing 987650 by 49 
The aim is to understand the frequency of 49 in 987650.

On to step 1:
If we divide 9 by 49, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Include the next digit (8) from the dividend after 9, then repeat: 98 / 49

Let's proceed to step 2:
The number 49 fits into 98 2 times, leaving a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 98 from 98 and we're left with 0.
Include the next digit (7) from the dividend after 0, then repeat: 7 / 49

On to step 3:
The number 49 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 20.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 49

Step 4:
49 can be fit into 76 1 times, resulting in a remainder of 27.
Use 1 as the next digit of our solution. 
Result so far: 201.0
The remainder is 27 after subtracting 49 from 76.
Bring next digit (5) of the dividend behind the 27 and repeat the process: 275 / 49

Moving on to step 5:
If we divide 275 by 49, we get 5 and a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 2015.0
Subtracting 245 from 275 leaves us with 30.
Grab the next digit (0) from the dividend, add it to 30, then carry on: 300 / 49

Moving on to step 6:
The number 49 fits into 300 6 times, leaving a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 20156.0
If we take 294 away from 300, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 7:
If we divide 60 by 49, we get 1 and a remainder of 11.
The next digit of our result is 1. 
Result so far: 20156.1
If we subtract 49 from 60, we 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.

Let's proceed to step 8:
49 goes into 110 2 times with a remainder of 12.
The number 2 becomes the next digit in our result. 
Result so far: 20156.12
Deduct 98 from 110 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
The number 49 fits into 120 2 times, leaving a remainder of 22.
Put 2 as the next digit of the answer. 
Result so far: 20156.122
Subtract 98 from 120 to 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.

The final outcome is 20156.122, with a leftover of 0.0022.