We're dividing 859401 by 71 
The aim is to understand the frequency of 71 in 859401.

Let's proceed to step 1:
The number 71 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (5) from the dividend, add it to 8, then carry on: 85 / 71

On to step 2:
85 divided by 71 is 1 with a remainder of 14.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 71 away from 85, we end up with 14.
Include the next digit (9) from the dividend after 14, then repeat: 149 / 71

Moving on to step 3:
When dividing 149 by 71, we get 2 with a remainder of 7.
Put 2 as the next digit of the answer. 
Result so far: 12.0
Subtract 142 from 149 to get 7.
Grab the next digit (4) from the dividend, add it to 7, then carry on: 74 / 71

Going ahead to step 4:
71 goes into 74 1 times with a remainder of 3.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
If we subtract 71 from 74, we get 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 71

Going ahead to step 5:
71 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 1210.0
The remainder is 30 after subtracting 0 from 30.
Take the next digit (1) from the dividend and append it to 30, then repeat: 301 / 71

Moving on to step 6:
When dividing 301 by 71, we get 4 with a remainder of 17.
Put 4 as the next digit of the answer. 
Result so far: 12104.0
Subtracting 284 from 301 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 7:
71 goes into 170 2 times with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 12104.2
Deduct 142 from 170 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 8:
If we divide 280 by 71, we get 3 and a remainder of 67.
The next digit of our result is 3. 
Result so far: 12104.23
Subtracting 213 from 280 leaves us with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 9:
If we divide 670 by 71, we get 9 and a remainder of 31.
Write down 9 as next digit of the result. 
Result so far: 12104.239
Subtracting 639 from 670 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Moving on to step 10:
310 divided by 71 is 4 with a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 12104.2394
Subtracting 284 from 310 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 11:
260 divided by 71 is 3 with a remainder of 47.
Put 3 as the next digit of the answer. 
Result so far: 12104.23943
Subtract 213 from 260 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 12:
If we divide 470 by 71, we get 6 and a remainder of 44.
Use 6 as the next digit of our solution. 
Result so far: 12104.239436
If we subtract 426 from 470, we 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.

Let's proceed to step 13:
When dividing 440 by 71, we get 6 with a remainder of 14.
The next digit of our result is 6. 
Result so far: 12104.2394366
The remainder is 14 after subtracting 426 from 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

After the division, we end up with 12104.2394366 and a remainder of 1.4e-07.