We look at the division of 147490 by 86 
The aim is to understand the frequency of 86 in 147490.

Going ahead to step 1:
The number 86 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 86

Moving on to step 2:
86 can be fit into 14 0 times, resulting in a remainder of 14.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 14 leaves us with 14.
Append the next digit (7) from the dividend to 14 and continue with: 147 / 86

Moving on to step 3:
86 goes into 147 1 times with a remainder of 61.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 86 away from 147, we end up with 61.
Fetch the next digit (4) from the dividend, attach it to 61 and continue: 614 / 86

Moving on to step 4:
When dividing 614 by 86, we get 7 with a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
The remainder is 12 after subtracting 602 from 614.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 86

Advancing to step 5:
If we divide 129 by 86, we get 1 and a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 171.0
The remainder is 43 after subtracting 86 from 129.
Take the next digit (0) from the dividend and append it to 43, then repeat: 430 / 86

Step 6:
The number 86 fits into 430 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 1715.0
If we take 430 away from 430, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 7:
86 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 1715.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 8:
When dividing 0 by 86, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 1715.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 1715.0, and the remainder is 0.0.