We're dividing 170686 by 67 
The aim is to understand the frequency of 67 in 170686.

On to step 1:
67 can be fit into 1 0 times, resulting in a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 67

Let's proceed to step 2:
17 divided by 67 is 0 with a remainder of 17.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 17, we get 17.
Fetch the next digit (0) from the dividend, attach it to 17 and continue: 170 / 67

Step 3:
67 can be fit into 170 2 times, resulting in a remainder of 36.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 134 from 170 and we're left with 36.
Take the next digit (6) from the dividend and append it to 36, then repeat: 366 / 67

On to step 4:
The number 67 fits into 366 5 times, leaving a remainder of 31.
Put 5 as the next digit of the answer. 
Result so far: 25.0
Subtracting 335 from 366 leaves us with 31.
Bring next digit (8) of the dividend behind the 31 and repeat the process: 318 / 67

Moving on to step 5:
When dividing 318 by 67, we get 4 with a remainder of 50.
The number 4 becomes the next digit in our result. 
Result so far: 254.0
If we subtract 268 from 318, we get 50.
Bring next digit (6) of the dividend behind the 50 and repeat the process: 506 / 67

Advancing to step 6:
If we divide 506 by 67, we get 7 and a remainder of 37.
The number 7 becomes the next digit in our result. 
Result so far: 2547.0
If we subtract 469 from 506, we get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Going ahead to step 7:
If we divide 370 by 67, we get 5 and a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 2547.5
Subtract 335 from 370 to get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 8:
350 divided by 67 is 5 with a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 2547.55
Subtract 335 from 350 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 2547.55, and the remainder is 0.015.