We look at the division of 858912 by 71 
The aim is to understand the frequency of 71 in 858912.

Going ahead to step 1:
8 divided by 71 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 71

Step 2:
85 divided by 71 is 1 with a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 71 from 85, we get 14.
Include the next digit (8) from the dividend after 14, then repeat: 148 / 71

Let's proceed to step 3:
71 can be fit into 148 2 times, resulting in a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we subtract 142 from 148, we get 6.
Include the next digit (9) from the dividend after 6, then repeat: 69 / 71

Step 4:
71 goes into 69 0 times with a remainder of 69.
Put 0 as the next digit of the answer. 
Result so far: 120.0
If we subtract 0 from 69, we get 69.
Fetch the next digit (1) from the dividend, attach it to 69 and continue: 691 / 71

Step 5:
If we divide 691 by 71, we get 9 and a remainder of 52.
The number 9 becomes the next digit in our result. 
Result so far: 1209.0
Deduct 639 from 691 and we're left with 52.
Grab the next digit (2) from the dividend, add it to 52, then carry on: 522 / 71

Moving on to step 6:
71 can be fit into 522 7 times, resulting in a remainder of 25.
Put 7 as the next digit of the answer. 
Result so far: 12097.0
The remainder is 25 after subtracting 497 from 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 7:
71 can be fit into 250 3 times, resulting in a remainder of 37.
The next digit of our result is 3. 
Result so far: 12097.3
The remainder is 37 after subtracting 213 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 8:
370 divided by 71 is 5 with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 12097.35
Subtract 355 from 370 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.

Moving on to step 9:
150 divided by 71 is 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 12097.352
If we subtract 142 from 150, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 10:
The number 71 fits into 80 1 times, leaving a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 12097.3521
The remainder is 9 after subtracting 71 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Moving on to step 11:
71 goes into 90 1 times with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 12097.35211
Subtract 71 from 90 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

In conclusion, the division gives 12097.35211 with a balance of 1.9e-05.