We're dividing 142246 by 86 
The aim is to understand the frequency of 86 in 142246.

On to step 1:
86 goes into 1 0 times with 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.
Include the next digit (4) from the dividend after 1, then repeat: 14 / 86

Step 2:
When dividing 14 by 86, we get 0 with a remainder of 14.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 14 to get 14.
Grab the next digit (2) from the dividend, add it to 14, then carry on: 142 / 86

On to step 3:
142 divided by 86 is 1 with a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 86 from 142 and we're left with 56.
Grab the next digit (2) from the dividend, add it to 56, then carry on: 562 / 86

Going ahead to step 4:
When dividing 562 by 86, we get 6 with a remainder of 46.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we subtract 516 from 562, we get 46.
Bring next digit (4) of the dividend behind the 46 and repeat the process: 464 / 86

Going ahead to step 5:
86 goes into 464 5 times with a remainder of 34.
Write down 5 as next digit of the result. 
Result so far: 165.0
Subtracting 430 from 464 leaves us with 34.
Append the next digit (6) from the dividend to 34 and continue with: 346 / 86

Moving on to step 6:
The number 86 fits into 346 4 times, leaving a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 1654.0
If we take 344 away from 346, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Let's proceed to step 7:
When dividing 20 by 86, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 1654.0
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 8:
When dividing 200 by 86, we get 2 with a remainder of 28.
The next digit of our result is 2. 
Result so far: 1654.02
Deduct 172 from 200 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
If we divide 280 by 86, we get 3 and a remainder of 22.
The number 3 becomes the next digit in our result. 
Result so far: 1654.023
If we take 258 away from 280, we end up 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.

Moving on to step 10:
86 can be fit into 220 2 times, resulting in a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 1654.0232
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.

Let's proceed to step 11:
The number 86 fits into 480 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 1654.02325
Subtract 430 from 480 to get 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 12:
86 can be fit into 500 5 times, resulting in a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 1654.023255
The remainder is 70 after subtracting 430 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Our division results in 1654.023255 with a remaining 7e-06.