We look at the division of 187992 by 287 
The aim is to understand the frequency of 287 in 187992.

Advancing to step 1:
287 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (8) from the dividend and append it to 1, then repeat: 18 / 287

Moving on to step 2:
18 divided by 287 is 0 with a remainder of 18.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 18 to get 18.
Include the next digit (7) from the dividend after 18, then repeat: 187 / 287

Let's proceed to step 3:
287 goes into 187 0 times with a remainder of 187.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 187 to get 187.
Include the next digit (9) from the dividend after 187, then repeat: 1879 / 287

On to step 4:
287 can be fit into 1879 6 times, resulting in a remainder of 157.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
Deduct 1722 from 1879 and we're left with 157.
Fetch the next digit (9) from the dividend, attach it to 157 and continue: 1579 / 287

Advancing to step 5:
When dividing 1579 by 287, we get 5 with a remainder of 144.
The next digit of our result is 5. 
Result so far: 65.0
The remainder is 144 after subtracting 1435 from 1579.
Bring next digit (2) of the dividend behind the 144 and repeat the process: 1442 / 287

Advancing to step 6:
The number 287 fits into 1442 5 times, leaving a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 655.0
Subtract 1435 from 1442 to get 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 7:
When dividing 70 by 287, we get 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 655.0
Subtracting 0 from 70 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

On to step 8:
287 can be fit into 700 2 times, resulting in a remainder of 126.
Use 2 as the next digit of our solution. 
Result so far: 655.02
Subtract 574 from 700 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Moving on to step 9:
When dividing 1260 by 287, we get 4 with a remainder of 112.
Record the quotient 4 as the next digit in the result. 
Result so far: 655.024
Subtract 1148 from 1260 to get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Step 10:
287 goes into 1120 3 times with a remainder of 259.
Record the quotient 3 as the next digit in the result. 
Result so far: 655.0243
If we subtract 861 from 1120, we get 259.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2590, and continue the process.

Going ahead to step 11:
287 goes into 2590 9 times with a remainder of 7.
Use 9 as the next digit of our solution. 
Result so far: 655.02439
Deduct 2583 from 2590 and we're left with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Going ahead to step 12:
287 goes into 70 0 times with a remainder of 70.
The number 0 becomes the next digit in our result. 
Result so far: 655.02439
Deduct 0 from 70 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 13:
If we divide 700 by 287, we get 2 and a remainder of 126.
Put 2 as the next digit of the answer. 
Result so far: 655.0243902
If we take 574 away from 700, we end up with 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 14:
287 can be fit into 1260 4 times, resulting in a remainder of 112.
The number 4 becomes the next digit in our result. 
Result so far: 655.02439024
If we subtract 1148 from 1260, we get 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

The final outcome is 655.02439024, with a leftover of 1.12e-07.