339879 divided by 87 
The aim is to understand the frequency of 87 in 339879.

Going ahead to step 1:
The number 87 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Append the next digit (3) from the dividend to 3 and continue with: 33 / 87

Going ahead to step 2:
The number 87 fits into 33 0 times, leaving a remainder of 33.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 33, we end up with 33.
Grab the next digit (9) from the dividend, add it to 33, then carry on: 339 / 87

Step 3:
The number 87 fits into 339 3 times, leaving a remainder of 78.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 261 from 339 and we're left with 78.
Bring next digit (8) of the dividend behind the 78 and repeat the process: 788 / 87

Moving on to step 4:
87 goes into 788 9 times with a remainder of 5.
Record the quotient 9 as the next digit in the result. 
Result so far: 39.0
Deduct 783 from 788 and we're left with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 87

On to step 5:
87 can be fit into 57 0 times, resulting in a remainder of 57.
Write down 0 as next digit of the result. 
Result so far: 390.0
Subtracting 0 from 57 leaves us with 57.
Append the next digit (9) from the dividend to 57 and continue with: 579 / 87

Step 6:
If we divide 579 by 87, we get 6 and a remainder of 57.
Use 6 as the next digit of our solution. 
Result so far: 3906.0
Subtract 522 from 579 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 7:
87 can be fit into 570 6 times, resulting in a remainder of 48.
Write down 6 as next digit of the result. 
Result so far: 3906.6
If we subtract 522 from 570, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 8:
480 divided by 87 is 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 3906.65
If we subtract 435 from 480, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 9:
87 goes into 450 5 times with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 3906.655
If we subtract 435 from 450, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

In conclusion, the division gives 3906.655 with a balance of 0.0015.