99905016 divided by 87 
The aim is to understand the frequency of 87 in 99905016.

On to step 1:
9 divided by 87 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 87

Advancing to step 2:
When dividing 99 by 87, we get 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 87 from 99, we get 12.
Bring next digit (9) of the dividend behind the 12 and repeat the process: 129 / 87

Step 3:
87 goes into 129 1 times with a remainder of 42.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 87 from 129 leaves us with 42.
Bring next digit (0) of the dividend behind the 42 and repeat the process: 420 / 87

Step 4:
When dividing 420 by 87, we get 4 with a remainder of 72.
The number 4 becomes the next digit in our result. 
Result so far: 114.0
The remainder is 72 after subtracting 348 from 420.
Include the next digit (5) from the dividend after 72, then repeat: 725 / 87

Let's proceed to step 5:
87 can be fit into 725 8 times, resulting in a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 1148.0
If we take 696 away from 725, we end up with 29.
Include the next digit (0) from the dividend after 29, then repeat: 290 / 87

Let's proceed to step 6:
If we divide 290 by 87, we get 3 and a remainder of 29.
Use 3 as the next digit of our solution. 
Result so far: 11483.0
The remainder is 29 after subtracting 261 from 290.
Include the next digit (1) from the dividend after 29, then repeat: 291 / 87

Moving on to step 7:
When dividing 291 by 87, we get 3 with a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 114833.0
The remainder is 30 after subtracting 261 from 291.
Take the next digit (6) from the dividend and append it to 30, then repeat: 306 / 87

Advancing to step 8:
87 goes into 306 3 times with a remainder of 45.
The next digit of our result is 3. 
Result so far: 1148333.0
Subtract 261 from 306 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 9:
87 goes into 450 5 times with a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 1148333.5
The remainder is 15 after subtracting 435 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 10:
If we divide 150 by 87, we get 1 and a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 1148333.51
Subtracting 87 from 150 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

On to step 11:
If we divide 630 by 87, we get 7 and a remainder of 21.
Record the quotient 7 as the next digit in the result. 
Result so far: 1148333.517
The remainder is 21 after subtracting 609 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Going ahead to step 12:
If we divide 210 by 87, we get 2 and a remainder of 36.
The number 2 becomes the next digit in our result. 
Result so far: 1148333.5172
The remainder is 36 after subtracting 174 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 13:
The number 87 fits into 360 4 times, leaving a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 1148333.51724
Deduct 348 from 360 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Going ahead to step 14:
120 divided by 87 is 1 with a remainder of 33.
The number 1 becomes the next digit in our result. 
Result so far: 1148333.517241
Deduct 87 from 120 and we're left with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 15:
The number 87 fits into 330 3 times, leaving a remainder of 69.
Write down 3 as next digit of the result. 
Result so far: 1148333.5172413
If we subtract 261 from 330, we get 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

On to step 16:
The number 87 fits into 690 7 times, leaving a remainder of 81.
The number 7 becomes the next digit in our result. 
Result so far: 1148333.51724137
If we take 609 away from 690, we end up with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

In conclusion, the division gives 1148333.51724137 with a balance of 8.1e-08.