We look at the division of 12585508 by 287 
The aim is to understand the frequency of 287 in 12585508.

Let's proceed to step 1:
The number 287 fits into 1 0 times, leaving a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (2) from the dividend, add it to 1, then carry on: 12 / 287

Step 2:
287 can be fit into 12 0 times, resulting in a remainder of 12.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 12, we get 12.
Take the next digit (5) from the dividend and append it to 12, then repeat: 125 / 287

Let's proceed to step 3:
The number 287 fits into 125 0 times, leaving a remainder of 125.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 125, we get 125.
Include the next digit (8) from the dividend after 125, then repeat: 1258 / 287

Going ahead to step 4:
1258 divided by 287 is 4 with a remainder of 110.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Deduct 1148 from 1258 and we're left with 110.
Bring next digit (5) of the dividend behind the 110 and repeat the process: 1105 / 287

Going ahead to step 5:
287 can be fit into 1105 3 times, resulting in a remainder of 244.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Deduct 861 from 1105 and we're left with 244.
Append the next digit (5) from the dividend to 244 and continue with: 2445 / 287

Let's proceed to step 6:
The number 287 fits into 2445 8 times, leaving a remainder of 149.
The number 8 becomes the next digit in our result. 
Result so far: 438.0
Deduct 2296 from 2445 and we're left with 149.
Take the next digit (0) from the dividend and append it to 149, then repeat: 1490 / 287

Let's proceed to step 7:
If we divide 1490 by 287, we get 5 and a remainder of 55.
Record the quotient 5 as the next digit in the result. 
Result so far: 4385.0
The remainder is 55 after subtracting 1435 from 1490.
Fetch the next digit (8) from the dividend, attach it to 55 and continue: 558 / 287

Let's proceed to step 8:
When dividing 558 by 287, we get 1 with a remainder of 271.
Put 1 as the next digit of the answer. 
Result so far: 43851.0
If we take 287 away from 558, we end up with 271.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2710, and continue the process.

Moving on to step 9:
287 can be fit into 2710 9 times, resulting in a remainder of 127.
The next digit of our result is 9. 
Result so far: 43851.9
If we take 2583 away from 2710, we end up with 127.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1270, and continue the process.

On to step 10:
If we divide 1270 by 287, we get 4 and a remainder of 122.
The next digit of our result is 4. 
Result so far: 43851.94
Subtracting 1148 from 1270 leaves us with 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

Step 11:
The number 287 fits into 1220 4 times, leaving a remainder of 72.
Write down 4 as next digit of the result. 
Result so far: 43851.944
Deduct 1148 from 1220 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Our division results in 43851.944 with a remaining 0.0072.