We divide 87296721 by 387
The aim is to understand the frequency of 387 in 87296721.

Moving on to step 1:
387 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 387

On to step 2:
387 can be fit into 87 0 times, resulting in a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Bring next digit (2) of the dividend behind the 87 and repeat the process: 872 / 387

On to step 3:
387 goes into 872 2 times with a remainder of 98.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 774 from 872 and we're left with 98.
Take the next digit (9) from the dividend and append it to 98, then repeat: 989 / 387

Advancing to step 4:
If we divide 989 by 387, we get 2 and a remainder of 215.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
If we take 774 away from 989, we end up with 215.
Include the next digit (6) from the dividend after 215, then repeat: 2156 / 387

Going ahead to step 5:
When dividing 2156 by 387, we get 5 with a remainder of 221.
Use 5 as the next digit of our solution. 
Result so far: 225.0
The remainder is 221 after subtracting 1935 from 2156.
Append the next digit (7) from the dividend to 221 and continue with: 2217 / 387

Moving on to step 6:
If we divide 2217 by 387, we get 5 and a remainder of 282.
The number 5 becomes the next digit in our result. 
Result so far: 2255.0
The remainder is 282 after subtracting 1935 from 2217.
Grab the next digit (2) from the dividend, add it to 282, then carry on: 2822 / 387

Let's proceed to step 7:
387 goes into 2822 7 times with a remainder of 113.
Write down 7 as next digit of the result. 
Result so far: 22557.0
Subtracting 2709 from 2822 leaves us with 113.
Include the next digit (1) from the dividend after 113, then repeat: 1131 / 387

Moving on to step 8:
1131 divided by 387 is 2 with a remainder of 357.
Use 2 as the next digit of our solution. 
Result so far: 225572.0
The remainder is 357 after subtracting 774 from 1131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Let's proceed to step 9:
When dividing 3570 by 387, we get 9 with a remainder of 87.
Use 9 as the next digit of our solution. 
Result so far: 225572.9
If we subtract 3483 from 3570, we get 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Step 10:
387 goes into 870 2 times with a remainder of 96.
The next digit of our result is 2. 
Result so far: 225572.92
Deduct 774 from 870 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 11:
387 goes into 960 2 times with a remainder of 186.
The number 2 becomes the next digit in our result. 
Result so far: 225572.922
Deduct 774 from 960 and we're left with 186.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1860, and continue the process.

Our division results in 225572.922 with a remaining 0.0186.