We're dividing 751058 by 86 
The aim is to understand the frequency of 86 in 751058.

On to step 1:
If we divide 7 by 86, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 86

On to step 2:
When dividing 75 by 86, we get 0 with a remainder of 75.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 75 leaves us with 75.
Fetch the next digit (1) from the dividend, attach it to 75 and continue: 751 / 86

On to step 3:
751 divided by 86 is 8 with a remainder of 63.
Put 8 as the next digit of the answer. 
Result so far: 8.0
If we subtract 688 from 751, we get 63.
Bring next digit (0) of the dividend behind the 63 and repeat the process: 630 / 86

Advancing to step 4:
The number 86 fits into 630 7 times, leaving a remainder of 28.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
Subtract 602 from 630 to get 28.
Include the next digit (5) from the dividend after 28, then repeat: 285 / 86

Moving on to step 5:
86 can be fit into 285 3 times, resulting in a remainder of 27.
Put 3 as the next digit of the answer. 
Result so far: 873.0
Subtract 258 from 285 to get 27.
Fetch the next digit (8) from the dividend, attach it to 27 and continue: 278 / 86

Step 6:
86 can be fit into 278 3 times, resulting in a remainder of 20.
Record the quotient 3 as the next digit in the result. 
Result so far: 8733.0
If we take 258 away from 278, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 7:
86 goes into 200 2 times with a remainder of 28.
Use 2 as the next digit of our solution. 
Result so far: 8733.2
Subtract 172 from 200 to 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.

Going ahead to step 8:
When dividing 280 by 86, we get 3 with a remainder of 22.
Use 3 as the next digit of our solution. 
Result so far: 8733.23
If we take 258 away from 280, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Step 9:
86 can be fit into 220 2 times, resulting in a remainder of 48.
Record the quotient 2 as the next digit in the result. 
Result so far: 8733.232
Subtracting 172 from 220 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 10:
480 divided by 86 is 5 with a remainder of 50.
The next digit of our result is 5. 
Result so far: 8733.2325
Subtract 430 from 480 to 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:
If we divide 500 by 86, we get 5 and a remainder of 70.
Use 5 as the next digit of our solution. 
Result so far: 8733.23255
If we take 430 away from 500, we end up 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.

The final outcome is 8733.23255, with a leftover of 7e-05.