We look at the division of 98335104 by 166 
The aim is to understand the frequency of 166 in 98335104.

Step 1:
166 goes into 9 0 times with 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.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 166

Advancing to step 2:
98 divided by 166 is 0 with a remainder of 98.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 98 to get 98.
Grab the next digit (3) from the dividend, add it to 98, then carry on: 983 / 166

Advancing to step 3:
When dividing 983 by 166, we get 5 with a remainder of 153.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
If we subtract 830 from 983, we get 153.
Bring next digit (3) of the dividend behind the 153 and repeat the process: 1533 / 166

Step 4:
The number 166 fits into 1533 9 times, leaving a remainder of 39.
Use 9 as the next digit of our solution. 
Result so far: 59.0
Deduct 1494 from 1533 and we're left with 39.
Include the next digit (5) from the dividend after 39, then repeat: 395 / 166

Step 5:
When dividing 395 by 166, we get 2 with a remainder of 63.
Record the quotient 2 as the next digit in the result. 
Result so far: 592.0
The remainder is 63 after subtracting 332 from 395.
Append the next digit (1) from the dividend to 63 and continue with: 631 / 166

Let's proceed to step 6:
When dividing 631 by 166, we get 3 with a remainder of 133.
Use 3 as the next digit of our solution. 
Result so far: 5923.0
If we subtract 498 from 631, we get 133.
Grab the next digit (0) from the dividend, add it to 133, then carry on: 1330 / 166

Advancing to step 7:
The number 166 fits into 1330 8 times, leaving a remainder of 2.
Put 8 as the next digit of the answer. 
Result so far: 59238.0
If we subtract 1328 from 1330, we get 2.
Take the next digit (4) from the dividend and append it to 2, then repeat: 24 / 166

On to step 8:
166 goes into 24 0 times with a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 592380.0
Subtract 0 from 24 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 9:
If we divide 240 by 166, we get 1 and a remainder of 74.
Use 1 as the next digit of our solution. 
Result so far: 592380.1
Subtract 166 from 240 to get 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 10:
166 can be fit into 740 4 times, resulting in a remainder of 76.
The next digit of our result is 4. 
Result so far: 592380.14
If we take 664 away from 740, we end up 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.

Let's proceed to step 11:
When dividing 760 by 166, we get 4 with a remainder of 96.
The next digit of our result is 4. 
Result so far: 592380.144
Deduct 664 from 760 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

After the division, we end up with 592380.144 and a remainder of 0.0096.