We look at the division of 851598 by 98 
The aim is to understand the frequency of 98 in 851598.

Step 1:
8 divided by 98 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 98

Step 2:
98 goes into 85 0 times with a remainder of 85.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Include the next digit (1) from the dividend after 85, then repeat: 851 / 98

Let's proceed to step 3:
98 goes into 851 8 times with a remainder of 67.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 784 from 851 leaves us with 67.
Fetch the next digit (5) from the dividend, attach it to 67 and continue: 675 / 98

Let's proceed to step 4:
When dividing 675 by 98, we get 6 with a remainder of 87.
The number 6 becomes the next digit in our result. 
Result so far: 86.0
If we subtract 588 from 675, we get 87.
Append the next digit (9) from the dividend to 87 and continue with: 879 / 98

Let's proceed to step 5:
98 can be fit into 879 8 times, resulting in a remainder of 95.
Put 8 as the next digit of the answer. 
Result so far: 868.0
If we subtract 784 from 879, we get 95.
Include the next digit (8) from the dividend after 95, then repeat: 958 / 98

Let's proceed to step 6:
The number 98 fits into 958 9 times, leaving a remainder of 76.
Use 9 as the next digit of our solution. 
Result so far: 8689.0
Subtracting 882 from 958 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 7:
The number 98 fits into 760 7 times, leaving a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 8689.7
If we take 686 away from 760, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

On to step 8:
98 goes into 740 7 times with a remainder of 54.
The next digit of our result is 7. 
Result so far: 8689.77
If we subtract 686 from 740, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

The final result is 8689.77 with a remainder of 0.054.