We're dividing 287191 by 87 
The aim is to understand the frequency of 87 in 287191.

Let's proceed to step 1:
The number 87 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (8) from the dividend, add it to 2, then carry on: 28 / 87

Going ahead to step 2:
28 divided by 87 is 0 with a remainder of 28.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 28, we end up with 28.
Fetch the next digit (7) from the dividend, attach it to 28 and continue: 287 / 87

Moving on to step 3:
If we divide 287 by 87, we get 3 and a remainder of 26.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 261 from 287 leaves us with 26.
Append the next digit (1) from the dividend to 26 and continue with: 261 / 87

Moving on to step 4:
87 can be fit into 261 3 times, resulting in a remainder of 0.
Put 3 as the next digit of the answer. 
Result so far: 33.0
If we subtract 261 from 261, we get 0.
Grab the next digit (9) from the dividend, add it to 0, then carry on: 9 / 87

Moving on to step 5:
If we divide 9 by 87, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 330.0
The remainder is 9 after subtracting 0 from 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 87

Advancing to step 6:
87 goes into 91 1 times with a remainder of 4.
The next digit of our result is 1. 
Result so far: 3301.0
If we take 87 away from 91, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
87 can be fit into 40 0 times, resulting in a remainder of 40.
The next digit of our result is 0. 
Result so far: 3301.0
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Moving on to step 8:
87 goes into 400 4 times with a remainder of 52.
Use 4 as the next digit of our solution. 
Result so far: 3301.04
If we subtract 348 from 400, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Step 9:
520 divided by 87 is 5 with a remainder of 85.
Use 5 as the next digit of our solution. 
Result so far: 3301.045
If we subtract 435 from 520, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 10:
87 can be fit into 850 9 times, resulting in a remainder of 67.
Record the quotient 9 as the next digit in the result. 
Result so far: 3301.0459
If we take 783 away from 850, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Going ahead to step 11:
670 divided by 87 is 7 with a remainder of 61.
Write down 7 as next digit of the result. 
Result so far: 3301.04597
The remainder is 61 after subtracting 609 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

On to step 12:
If we divide 610 by 87, we get 7 and a remainder of 1.
Write down 7 as next digit of the result. 
Result so far: 3301.045977
Subtracting 609 from 610 leaves us with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

The final outcome is 3301.045977, with a leftover of 1e-07.