866330 ÷ 71 
The aim is to understand the frequency of 71 in 866330.

Step 1:
When dividing 8 by 71, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 71

Going ahead to step 2:
If we divide 86 by 71, we get 1 and a remainder of 15.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 71 from 86 leaves us with 15.
Take the next digit (6) from the dividend and append it to 15, then repeat: 156 / 71

Advancing to step 3:
When dividing 156 by 71, we get 2 with a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 12.0
The remainder is 14 after subtracting 142 from 156.
Include the next digit (3) from the dividend after 14, then repeat: 143 / 71

Moving on to step 4:
71 goes into 143 2 times with a remainder of 1.
Write down 2 as next digit of the result. 
Result so far: 122.0
Subtracting 142 from 143 leaves us with 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 71

On to step 5:
71 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 1220.0
Deduct 0 from 13 and we're left with 13.
Grab the next digit (0) from the dividend, add it to 13, then carry on: 130 / 71

Step 6:
71 can be fit into 130 1 times, resulting in a remainder of 59.
Write down 1 as next digit of the result. 
Result so far: 12201.0
If we take 71 away from 130, we end up with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 7:
When dividing 590 by 71, we get 8 with a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 12201.8
Subtract 568 from 590 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
71 goes into 220 3 times with a remainder of 7.
Write down 3 as next digit of the result. 
Result so far: 12201.83
Subtract 213 from 220 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 9:
71 goes into 70 0 times with a remainder of 70.
The next digit of our result is 0. 
Result so far: 12201.83
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 10:
71 goes into 700 9 times with a remainder of 61.
Record the quotient 9 as the next digit in the result. 
Result so far: 12201.8309
If we subtract 639 from 700, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Let's proceed to step 11:
71 goes into 610 8 times with a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 12201.83098
If we subtract 568 from 610, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 12:
420 divided by 71 is 5 with a remainder of 65.
The next digit of our result is 5. 
Result so far: 12201.830985
Subtracting 355 from 420 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 13:
650 divided by 71 is 9 with a remainder of 11.
Put 9 as the next digit of the answer. 
Result so far: 12201.8309859
Subtract 639 from 650 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 14:
If we divide 110 by 71, we get 1 and a remainder of 39.
The number 1 becomes the next digit in our result. 
Result so far: 12201.83098591
Subtracting 71 from 110 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

In conclusion, the division gives 12201.83098591 with a balance of 3.9e-08.