70321 divided by 86 
The aim is to understand the frequency of 86 in 70321.

Going ahead to step 1:
86 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (0) from the dividend after 7, then repeat: 70 / 86

Advancing to step 2:
86 can be fit into 70 0 times, resulting in a remainder of 70.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 70, we get 70.
Include the next digit (3) from the dividend after 70, then repeat: 703 / 86

On to step 3:
If we divide 703 by 86, we get 8 and a remainder of 15.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 688 from 703 leaves us with 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 86

Step 4:
86 can be fit into 152 1 times, resulting in a remainder of 66.
Record the quotient 1 as the next digit in the result. 
Result so far: 81.0
Subtract 86 from 152 to get 66.
Grab the next digit (1) from the dividend, add it to 66, then carry on: 661 / 86

On to step 5:
If we divide 661 by 86, we get 7 and a remainder of 59.
The number 7 becomes the next digit in our result. 
Result so far: 817.0
Subtract 602 from 661 to get 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 6:
The number 86 fits into 590 6 times, leaving a remainder of 74.
Use 6 as the next digit of our solution. 
Result so far: 817.6
Deduct 516 from 590 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Going ahead to step 7:
86 can be fit into 740 8 times, resulting in a remainder of 52.
Put 8 as the next digit of the answer. 
Result so far: 817.68
Subtract 688 from 740 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 8:
When dividing 520 by 86, we get 6 with a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 817.686
Subtracting 516 from 520 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
When dividing 40 by 86, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 817.686
If we subtract 0 from 40, we get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
When dividing 400 by 86, we get 4 with a remainder of 56.
Record the quotient 4 as the next digit in the result. 
Result so far: 817.68604
If we take 344 away from 400, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 11:
560 divided by 86 is 6 with a remainder of 44.
Record the quotient 6 as the next digit in the result. 
Result so far: 817.686046
The remainder is 44 after subtracting 516 from 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 12:
If we divide 440 by 86, we get 5 and a remainder of 10.
The number 5 becomes the next digit in our result. 
Result so far: 817.6860465
Subtract 430 from 440 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 13:
If we divide 100 by 86, we get 1 and a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 817.68604651
If we take 86 away from 100, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

The final result is 817.68604651 with a remainder of 1.4e-08.