87015290 divided by 239 
The aim is to understand the frequency of 239 in 87015290.

Let's proceed to step 1:
239 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 239

On to step 2:
If we divide 87 by 239, we get 0 and a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Bring next digit (0) of the dividend behind the 87 and repeat the process: 870 / 239

Going ahead to step 3:
If we divide 870 by 239, we get 3 and a remainder of 153.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 717 from 870, we get 153.
Fetch the next digit (1) from the dividend, attach it to 153 and continue: 1531 / 239

Moving on to step 4:
When dividing 1531 by 239, we get 6 with a remainder of 97.
Put 6 as the next digit of the answer. 
Result so far: 36.0
Subtract 1434 from 1531 to get 97.
Bring next digit (5) of the dividend behind the 97 and repeat the process: 975 / 239

Moving on to step 5:
When dividing 975 by 239, we get 4 with a remainder of 19.
Record the quotient 4 as the next digit in the result. 
Result so far: 364.0
Subtract 956 from 975 to get 19.
Fetch the next digit (2) from the dividend, attach it to 19 and continue: 192 / 239

Advancing to step 6:
If we divide 192 by 239, we get 0 and a remainder of 192.
The number 0 becomes the next digit in our result. 
Result so far: 3640.0
The remainder is 192 after subtracting 0 from 192.
Include the next digit (9) from the dividend after 192, then repeat: 1929 / 239

Moving on to step 7:
239 goes into 1929 8 times with a remainder of 17.
Use 8 as the next digit of our solution. 
Result so far: 36408.0
Deduct 1912 from 1929 and we're left with 17.
Take the next digit (0) from the dividend and append it to 17, then repeat: 170 / 239

Moving on to step 8:
If we divide 170 by 239, we get 0 and a remainder of 170.
Use 0 as the next digit of our solution. 
Result so far: 364080.0
Deduct 0 from 170 and we're left with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

On to step 9:
When dividing 1700 by 239, we get 7 with a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 364080.7
Subtract 1673 from 1700 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 10:
When dividing 270 by 239, we get 1 with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 364080.71
Subtracting 239 from 270 leaves us with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Let's proceed to step 11:
239 goes into 310 1 times with a remainder of 71.
Use 1 as the next digit of our solution. 
Result so far: 364080.711
Deduct 239 from 310 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

After the division, we end up with 364080.711 and a remainder of 0.0071.