We're dividing 87749291 by 387 
The aim is to understand the frequency of 387 in 87749291.

Step 1:
When dividing 8 by 387, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 387

Moving on to step 2:
387 can be fit into 87 0 times, resulting in a remainder of 87.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 87 and we're left with 87.
Fetch the next digit (7) from the dividend, attach it to 87 and continue: 877 / 387

Going ahead to step 3:
387 can be fit into 877 2 times, resulting in a remainder of 103.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 774 away from 877, we end up with 103.
Bring next digit (4) of the dividend behind the 103 and repeat the process: 1034 / 387

Let's proceed to step 4:
When dividing 1034 by 387, we get 2 with a remainder of 260.
Record the quotient 2 as the next digit in the result. 
Result so far: 22.0
Subtract 774 from 1034 to get 260.
Grab the next digit (9) from the dividend, add it to 260, then carry on: 2609 / 387

Let's proceed to step 5:
If we divide 2609 by 387, we get 6 and a remainder of 287.
The number 6 becomes the next digit in our result. 
Result so far: 226.0
If we take 2322 away from 2609, we end up with 287.
Take the next digit (2) from the dividend and append it to 287, then repeat: 2872 / 387

On to step 6:
2872 divided by 387 is 7 with a remainder of 163.
Put 7 as the next digit of the answer. 
Result so far: 2267.0
Subtract 2709 from 2872 to get 163.
Append the next digit (9) from the dividend to 163 and continue with: 1639 / 387

Step 7:
387 goes into 1639 4 times with a remainder of 91.
The next digit of our result is 4. 
Result so far: 22674.0
If we take 1548 away from 1639, we end up with 91.
Grab the next digit (1) from the dividend, add it to 91, then carry on: 911 / 387

On to step 8:
387 can be fit into 911 2 times, resulting in a remainder of 137.
The next digit of our result is 2. 
Result so far: 226742.0
The remainder is 137 after subtracting 774 from 911.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1370, and continue the process.

Going ahead to step 9:
387 can be fit into 1370 3 times, resulting in a remainder of 209.
Put 3 as the next digit of the answer. 
Result so far: 226742.3
Subtracting 1161 from 1370 leaves us with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Let's proceed to step 10:
2090 divided by 387 is 5 with a remainder of 155.
The next digit of our result is 5. 
Result so far: 226742.35
If we take 1935 away from 2090, we end up with 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Moving on to step 11:
1550 divided by 387 is 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 226742.354
If we take 1548 away from 1550, we end up 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.

Advancing to step 12:
387 can be fit into 20 0 times, resulting in a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 226742.354
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 13:
The number 387 fits into 200 0 times, leaving a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 226742.354
The remainder is 200 after subtracting 0 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

In conclusion, the division gives 226742.354 with a balance of 0.0002.