We're dividing 437718 by 86 
The aim is to understand the frequency of 86 in 437718.

Advancing to step 1:
If we divide 4 by 86, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 86

Let's proceed to step 2:
86 can be fit into 43 0 times, resulting in a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 43 to get 43.
Append the next digit (7) from the dividend to 43 and continue with: 437 / 86

Step 3:
437 divided by 86 is 5 with a remainder of 7.
The next digit of our result is 5. 
Result so far: 5.0
The remainder is 7 after subtracting 430 from 437.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 86

Let's proceed to step 4:
86 can be fit into 77 0 times, resulting in a remainder of 77.
Put 0 as the next digit of the answer. 
Result so far: 50.0
The remainder is 77 after subtracting 0 from 77.
Grab the next digit (1) from the dividend, add it to 77, then carry on: 771 / 86

Step 5:
If we divide 771 by 86, we get 8 and a remainder of 83.
Put 8 as the next digit of the answer. 
Result so far: 508.0
If we take 688 away from 771, we end up with 83.
Bring next digit (8) of the dividend behind the 83 and repeat the process: 838 / 86

Let's proceed to step 6:
If we divide 838 by 86, we get 9 and a remainder of 64.
The next digit of our result is 9. 
Result so far: 5089.0
Deduct 774 from 838 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 7:
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: 5089.7
Deduct 602 from 640 and we're left 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.

Step 8:
If we divide 380 by 86, we get 4 and a remainder of 36.
Use 4 as the next digit of our solution. 
Result so far: 5089.74
The remainder is 36 after subtracting 344 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 9:
The number 86 fits into 360 4 times, leaving a remainder of 16.
Write down 4 as next digit of the result. 
Result so far: 5089.744
If we subtract 344 from 360, we get 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 5089.744, with a leftover of 0.0016.