Let's divide 898172 by 66
The aim is to understand the frequency of 66 in 898172.

Moving on to step 1:
If we divide 8 by 66, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 66

Moving on to step 2:
When dividing 89 by 66, we get 1 with a remainder of 23.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 66 away from 89, we end up with 23.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 66

On to step 3:
When dividing 238 by 66, we get 3 with a remainder of 40.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Deduct 198 from 238 and we're left with 40.
Take the next digit (1) from the dividend and append it to 40, then repeat: 401 / 66

Advancing to step 4:
The number 66 fits into 401 6 times, leaving a remainder of 5.
Record the quotient 6 as the next digit in the result. 
Result so far: 136.0
If we subtract 396 from 401, we get 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 66

On to step 5:
57 divided by 66 is 0 with a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 1360.0
The remainder is 57 after subtracting 0 from 57.
Take the next digit (2) from the dividend and append it to 57, then repeat: 572 / 66

Advancing to step 6:
66 can be fit into 572 8 times, resulting in a remainder of 44.
The number 8 becomes the next digit in our result. 
Result so far: 13608.0
Subtracting 528 from 572 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 7:
The number 66 fits into 440 6 times, leaving a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 13608.6
Subtract 396 from 440 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 8:
66 goes into 440 6 times with a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 13608.66
If we take 396 away from 440, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

The final outcome is 13608.66, with a leftover of 0.044.