We look at the division of 864752 by 87 
The aim is to understand the frequency of 87 in 864752.

Advancing to step 1:
87 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 87

Let's proceed to step 2:
87 can be fit into 86 0 times, resulting in a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 86 and we're left with 86.
Fetch the next digit (4) from the dividend, attach it to 86 and continue: 864 / 87

Let's proceed to step 3:
864 divided by 87 is 9 with a remainder of 81.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 81 after subtracting 783 from 864.
Append the next digit (7) from the dividend to 81 and continue with: 817 / 87

Going ahead to step 4:
87 goes into 817 9 times with a remainder of 34.
The next digit of our result is 9. 
Result so far: 99.0
The remainder is 34 after subtracting 783 from 817.
Fetch the next digit (5) from the dividend, attach it to 34 and continue: 345 / 87

Step 5:
87 goes into 345 3 times with a remainder of 84.
The next digit of our result is 3. 
Result so far: 993.0
If we subtract 261 from 345, we get 84.
Take the next digit (2) from the dividend and append it to 84, then repeat: 842 / 87

Moving on to step 6:
87 goes into 842 9 times with a remainder of 59.
The number 9 becomes the next digit in our result. 
Result so far: 9939.0
The remainder is 59 after subtracting 783 from 842.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 7:
The number 87 fits into 590 6 times, leaving a remainder of 68.
Put 6 as the next digit of the answer. 
Result so far: 9939.6
Subtract 522 from 590 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 8:
87 goes into 680 7 times with a remainder of 71.
Put 7 as the next digit of the answer. 
Result so far: 9939.67
Subtract 609 from 680 to get 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Moving on to step 9:
The number 87 fits into 710 8 times, leaving a remainder of 14.
The next digit of our result is 8. 
Result so far: 9939.678
Subtracting 696 from 710 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
When dividing 140 by 87, we get 1 with a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 9939.6781
Subtracting 87 from 140 leaves us with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

On to step 11:
530 divided by 87 is 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 9939.67816
Subtracting 522 from 530 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 12:
87 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 9939.67816
Subtracting 0 from 80 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 13:
When dividing 800 by 87, we get 9 with a remainder of 17.
Record the quotient 9 as the next digit in the result. 
Result so far: 9939.6781609
If we take 783 away from 800, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 14:
The number 87 fits into 170 1 times, leaving a remainder of 83.
The next digit of our result is 1. 
Result so far: 9939.67816091
Deduct 87 from 170 and we're left with 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

The final result is 9939.67816091 with a remainder of 8.3e-08.