726505 ÷ 86 
The aim is to understand the frequency of 86 in 726505.

Step 1:
When dividing 7 by 86, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 86

Moving on to step 2:
86 can be fit into 72 0 times, resulting in a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 72 after subtracting 0 from 72.
Take the next digit (6) from the dividend and append it to 72, then repeat: 726 / 86

On to step 3:
86 can be fit into 726 8 times, resulting in a remainder of 38.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
If we take 688 away from 726, we end up with 38.
Include the next digit (5) from the dividend after 38, then repeat: 385 / 86

Step 4:
The number 86 fits into 385 4 times, leaving a remainder of 41.
Use 4 as the next digit of our solution. 
Result so far: 84.0
If we subtract 344 from 385, we get 41.
Append the next digit (0) from the dividend to 41 and continue with: 410 / 86

Let's proceed to step 5:
If we divide 410 by 86, we get 4 and a remainder of 66.
Use 4 as the next digit of our solution. 
Result so far: 844.0
If we take 344 away from 410, we end up with 66.
Grab the next digit (5) from the dividend, add it to 66, then carry on: 665 / 86

Step 6:
The number 86 fits into 665 7 times, leaving a remainder of 63.
Record the quotient 7 as the next digit in the result. 
Result so far: 8447.0
Deduct 602 from 665 and we're left with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Advancing to step 7:
86 goes into 630 7 times with a remainder of 28.
Put 7 as the next digit of the answer. 
Result so far: 8447.7
If we subtract 602 from 630, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 8:
If we divide 280 by 86, we get 3 and a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 8447.73
If we subtract 258 from 280, we 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.

Going ahead to step 9:
If we divide 220 by 86, we get 2 and a remainder of 48.
The next digit of our result is 2. 
Result so far: 8447.732
Subtract 172 from 220 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 10:
When dividing 480 by 86, we get 5 with a remainder of 50.
Write down 5 as next digit of the result. 
Result so far: 8447.7325
If we subtract 430 from 480, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 11:
When dividing 500 by 86, we get 5 with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 8447.73255
If we subtract 430 from 500, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final result is 8447.73255 with a remainder of 7e-05.