We look at the division of 787323 by 87 
The aim is to understand the frequency of 87 in 787323.

Step 1:
87 can be fit into 7 0 times, resulting in a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 87

Advancing to step 2:
When dividing 78 by 87, we get 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Fetch the next digit (7) from the dividend, attach it to 78 and continue: 787 / 87

Moving on to step 3:
The number 87 fits into 787 9 times, leaving a remainder of 4.
Record the quotient 9 as the next digit in the result. 
Result so far: 9.0
Deduct 783 from 787 and we're left with 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 87

Moving on to step 4:
87 can be fit into 43 0 times, resulting in a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 90.0
Subtract 0 from 43 to get 43.
Fetch the next digit (2) from the dividend, attach it to 43 and continue: 432 / 87

Advancing to step 5:
87 can be fit into 432 4 times, resulting in a remainder of 84.
Write down 4 as next digit of the result. 
Result so far: 904.0
Deduct 348 from 432 and we're left with 84.
Fetch the next digit (3) from the dividend, attach it to 84 and continue: 843 / 87

Step 6:
The number 87 fits into 843 9 times, leaving a remainder of 60.
Put 9 as the next digit of the answer. 
Result so far: 9049.0
Subtracting 783 from 843 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Moving on to step 7:
If we divide 600 by 87, we get 6 and a remainder of 78.
Use 6 as the next digit of our solution. 
Result so far: 9049.6
Subtracting 522 from 600 leaves us with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Moving on to step 8:
If we divide 780 by 87, we get 8 and a remainder of 84.
Use 8 as the next digit of our solution. 
Result so far: 9049.68
If we subtract 696 from 780, we get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 9:
If we divide 840 by 87, we get 9 and a remainder of 57.
Write down 9 as next digit of the result. 
Result so far: 9049.689
If we take 783 away from 840, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 10:
The number 87 fits into 570 6 times, leaving a remainder of 48.
Put 6 as the next digit of the answer. 
Result so far: 9049.6896
Subtracting 522 from 570 leaves us 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.

Advancing to step 11:
480 divided by 87 is 5 with a remainder of 45.
Use 5 as the next digit of our solution. 
Result so far: 9049.68965
Subtracting 435 from 480 leaves us with 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 12:
If we divide 450 by 87, we get 5 and a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 9049.689655
The remainder is 15 after subtracting 435 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The final outcome is 9049.689655, with a leftover of 1.5e-06.