We look at the division of 65699 by 87 
The aim is to understand the frequency of 87 in 65699.

Let's proceed to step 1:
If we divide 6 by 87, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 87

Moving on to step 2:
When dividing 65 by 87, we get 0 with a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 65, we end up with 65.
Bring next digit (6) of the dividend behind the 65 and repeat the process: 656 / 87

Let's proceed to step 3:
87 goes into 656 7 times with a remainder of 47.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 609 from 656 and we're left with 47.
Take the next digit (9) from the dividend and append it to 47, then repeat: 479 / 87

Advancing to step 4:
If we divide 479 by 87, we get 5 and a remainder of 44.
Record the quotient 5 as the next digit in the result. 
Result so far: 75.0
Subtract 435 from 479 to get 44.
Grab the next digit (9) from the dividend, add it to 44, then carry on: 449 / 87

Step 5:
87 can be fit into 449 5 times, resulting in a remainder of 14.
Record the quotient 5 as the next digit in the result. 
Result so far: 755.0
Subtract 435 from 449 to get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 6:
87 can be fit into 140 1 times, resulting in a remainder of 53.
The number 1 becomes the next digit in our result. 
Result so far: 755.1
If we subtract 87 from 140, we get 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 7:
When dividing 530 by 87, we get 6 with a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 755.16
The remainder is 8 after subtracting 522 from 530.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 8:
87 can be fit into 80 0 times, resulting in a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 755.16
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.

Step 9:
If we divide 800 by 87, we get 9 and a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 755.1609
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.

Moving on to step 10:
87 can be fit into 170 1 times, resulting in a remainder of 83.
The number 1 becomes the next digit in our result. 
Result so far: 755.16091
If we take 87 away from 170, we end up 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.

Advancing to step 11:
The number 87 fits into 830 9 times, leaving a remainder of 47.
Record the quotient 9 as the next digit in the result. 
Result so far: 755.160919
Subtracting 783 from 830 leaves us with 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 12:
87 goes into 470 5 times with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 755.1609195
If we subtract 435 from 470, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Moving on to step 13:
The number 87 fits into 350 4 times, leaving a remainder of 2.
Use 4 as the next digit of our solution. 
Result so far: 755.16091954
Subtracting 348 from 350 leaves us 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.

The final outcome is 755.16091954, with a leftover of 2e-09.