We look at the division of 818043 by 86 
The aim is to understand the frequency of 86 in 818043.

Moving on to step 1:
8 divided by 86 is 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 (1) from the dividend, add it to 8, then carry on: 81 / 86

Going ahead to step 2:
81 divided by 86 is 0 with a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 81 leaves us with 81.
Append the next digit (8) from the dividend to 81 and continue with: 818 / 86

Step 3:
When dividing 818 by 86, we get 9 with a remainder of 44.
Write down 9 as next digit of the result. 
Result so far: 9.0
If we take 774 away from 818, we end up with 44.
Append the next digit (0) from the dividend to 44 and continue with: 440 / 86

On to step 4:
86 can be fit into 440 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 95.0
Subtract 430 from 440 to get 10.
Append the next digit (4) from the dividend to 10 and continue with: 104 / 86

Moving on to step 5:
86 goes into 104 1 times with a remainder of 18.
Write down 1 as next digit of the result. 
Result so far: 951.0
The remainder is 18 after subtracting 86 from 104.
Fetch the next digit (3) from the dividend, attach it to 18 and continue: 183 / 86

Going ahead to step 6:
The number 86 fits into 183 2 times, leaving a remainder of 11.
Put 2 as the next digit of the answer. 
Result so far: 9512.0
If we take 172 away from 183, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
86 goes into 110 1 times with a remainder of 24.
Write down 1 as next digit of the result. 
Result so far: 9512.1
Subtract 86 from 110 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
The number 86 fits into 240 2 times, leaving a remainder of 68.
The next digit of our result is 2. 
Result so far: 9512.12
The remainder is 68 after subtracting 172 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Step 9:
86 can be fit into 680 7 times, resulting in a remainder of 78.
Record the quotient 7 as the next digit in the result. 
Result so far: 9512.127
The remainder is 78 after subtracting 602 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Going ahead to step 10:
The number 86 fits into 780 9 times, leaving a remainder of 6.
Record the quotient 9 as the next digit in the result. 
Result so far: 9512.1279
If we subtract 774 from 780, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
The number 86 fits into 60 0 times, leaving a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 9512.1279
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 12:
The number 86 fits into 600 6 times, leaving a remainder of 84.
Record the quotient 6 as the next digit in the result. 
Result so far: 9512.127906
Deduct 516 from 600 and we're left with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 13:
840 divided by 86 is 9 with a remainder of 66.
The number 9 becomes the next digit in our result. 
Result so far: 9512.1279069
If we subtract 774 from 840, we get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 14:
86 can be fit into 660 7 times, resulting in a remainder of 58.
Record the quotient 7 as the next digit in the result. 
Result so far: 9512.12790697
The remainder is 58 after subtracting 602 from 660.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

After the division, we end up with 9512.12790697 and a remainder of 5.8e-08.