We look at the division of 624554 by 86 
The aim is to understand the frequency of 86 in 624554.

Advancing to step 1:
If we divide 6 by 86, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (2) from the dividend, add it to 6, then carry on: 62 / 86

Let's proceed to step 2:
86 goes into 62 0 times with a remainder of 62.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 62, we end up with 62.
Append the next digit (4) from the dividend to 62 and continue with: 624 / 86

Advancing to step 3:
86 can be fit into 624 7 times, resulting in a remainder of 22.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 22 after subtracting 602 from 624.
Fetch the next digit (5) from the dividend, attach it to 22 and continue: 225 / 86

On to step 4:
86 can be fit into 225 2 times, resulting in a remainder of 53.
The next digit of our result is 2. 
Result so far: 72.0
If we subtract 172 from 225, we get 53.
Fetch the next digit (5) from the dividend, attach it to 53 and continue: 535 / 86

Going ahead to step 5:
86 can be fit into 535 6 times, resulting in a remainder of 19.
The number 6 becomes the next digit in our result. 
Result so far: 726.0
If we subtract 516 from 535, we get 19.
Append the next digit (4) from the dividend to 19 and continue with: 194 / 86

Advancing to step 6:
86 can be fit into 194 2 times, resulting in a remainder of 22.
The number 2 becomes the next digit in our result. 
Result so far: 7262.0
Subtracting 172 from 194 leaves us 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.

Advancing to step 7:
86 can be fit into 220 2 times, resulting in a remainder of 48.
The next digit of our result is 2. 
Result so far: 7262.2
If we take 172 away from 220, we end up 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.

Advancing to step 8:
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: 7262.25
Deduct 430 from 480 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 9:
86 goes into 500 5 times with a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 7262.255
Subtracting 430 from 500 leaves us 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 quotient of the division is 7262.255, and the remainder is 0.007.