We look at the division of 85770118 by 170 
The aim is to understand the frequency of 170 in 85770118.

Step 1:
170 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 170

Advancing to step 2:
170 goes into 85 0 times with a remainder of 85.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 85 leaves us with 85.
Fetch the next digit (7) from the dividend, attach it to 85 and continue: 857 / 170

Going ahead to step 3:
857 divided by 170 is 5 with a remainder of 7.
The next digit of our result is 5. 
Result so far: 5.0
If we subtract 850 from 857, we get 7.
Take the next digit (7) from the dividend and append it to 7, then repeat: 77 / 170

On to step 4:
The number 170 fits into 77 0 times, leaving a remainder of 77.
Write down 0 as next digit of the result. 
Result so far: 50.0
Deduct 0 from 77 and we're left with 77.
Append the next digit (0) from the dividend to 77 and continue with: 770 / 170

On to step 5:
770 divided by 170 is 4 with a remainder of 90.
Use 4 as the next digit of our solution. 
Result so far: 504.0
If we subtract 680 from 770, we get 90.
Append the next digit (1) from the dividend to 90 and continue with: 901 / 170

On to step 6:
If we divide 901 by 170, we get 5 and a remainder of 51.
Record the quotient 5 as the next digit in the result. 
Result so far: 5045.0
Deduct 850 from 901 and we're left with 51.
Fetch the next digit (1) from the dividend, attach it to 51 and continue: 511 / 170

Let's proceed to step 7:
The number 170 fits into 511 3 times, leaving a remainder of 1.
The next digit of our result is 3. 
Result so far: 50453.0
Subtract 510 from 511 to get 1.
Include the next digit (8) from the dividend after 1, then repeat: 18 / 170

Going ahead to step 8:
The number 170 fits into 18 0 times, leaving a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 504530.0
If we subtract 0 from 18, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
180 divided by 170 is 1 with a remainder of 10.
The next digit of our result is 1. 
Result so far: 504530.1
If we take 170 away from 180, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 10:
When dividing 100 by 170, we get 0 with a remainder of 100.
Use 0 as the next digit of our solution. 
Result so far: 504530.1
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 11:
170 goes into 1000 5 times with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 504530.105
Deduct 850 from 1000 and we're left with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 12:
170 can be fit into 1500 8 times, resulting in a remainder of 140.
Write down 8 as next digit of the result. 
Result so far: 504530.1058
If we subtract 1360 from 1500, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 13:
When dividing 1400 by 170, we get 8 with a remainder of 40.
Record the quotient 8 as the next digit in the result. 
Result so far: 504530.10588
The remainder is 40 after subtracting 1360 from 1400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 504530.10588, with a leftover of 4e-05.