415403 ÷ 86 
The aim is to understand the frequency of 86 in 415403.

On to step 1:
The number 86 fits into 4 0 times, leaving a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (1) from the dividend, attach it to 4 and continue: 41 / 86

On to step 2:
41 divided by 86 is 0 with a remainder of 41.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 41, we end up with 41.
Append the next digit (5) from the dividend to 41 and continue with: 415 / 86

On to step 3:
When dividing 415 by 86, we get 4 with a remainder of 71.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtracting 344 from 415 leaves us with 71.
Include the next digit (4) from the dividend after 71, then repeat: 714 / 86

Let's proceed to step 4:
714 divided by 86 is 8 with a remainder of 26.
Write down 8 as next digit of the result. 
Result so far: 48.0
Subtract 688 from 714 to get 26.
Grab the next digit (0) from the dividend, add it to 26, then carry on: 260 / 86

Moving on to step 5:
If we divide 260 by 86, we get 3 and a remainder of 2.
Put 3 as the next digit of the answer. 
Result so far: 483.0
Subtract 258 from 260 to get 2.
Fetch the next digit (3) from the dividend, attach it to 2 and continue: 23 / 86

Going ahead to step 6:
When dividing 23 by 86, we get 0 with a remainder of 23.
Record the quotient 0 as the next digit in the result. 
Result so far: 4830.0
Subtracting 0 from 23 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

On to step 7:
When dividing 230 by 86, we get 2 with a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 4830.2
If we subtract 172 from 230, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Step 8:
86 goes into 580 6 times with a remainder of 64.
Write down 6 as next digit of the result. 
Result so far: 4830.26
If we subtract 516 from 580, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Step 9:
86 can be fit into 640 7 times, resulting in a remainder of 38.
The next digit of our result is 7. 
Result so far: 4830.267
Subtracting 602 from 640 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 10:
The number 86 fits into 380 4 times, leaving a remainder of 36.
The number 4 becomes the next digit in our result. 
Result so far: 4830.2674
Deduct 344 from 380 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Going ahead to step 11:
360 divided by 86 is 4 with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 4830.26744
The remainder is 16 after subtracting 344 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

After the division, we end up with 4830.26744 and a remainder of 1.6e-05.