Let's divide 84129888 by 915
The aim is to understand the frequency of 915 in 84129888.

Step 1:
If we divide 8 by 915, we get 0 and 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.
Include the next digit (4) from the dividend after 8, then repeat: 84 / 915

Moving on to step 2:
The number 915 fits into 84 0 times, leaving a remainder of 84.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 84, we get 84.
Bring next digit (1) of the dividend behind the 84 and repeat the process: 841 / 915

Let's proceed to step 3:
915 goes into 841 0 times with a remainder of 841.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 841 after subtracting 0 from 841.
Include the next digit (2) from the dividend after 841, then repeat: 8412 / 915

Moving on to step 4:
If we divide 8412 by 915, we get 9 and a remainder of 177.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 8235 from 8412 to get 177.
Fetch the next digit (9) from the dividend, attach it to 177 and continue: 1779 / 915

Moving on to step 5:
The number 915 fits into 1779 1 times, leaving a remainder of 864.
Put 1 as the next digit of the answer. 
Result so far: 91.0
If we subtract 915 from 1779, we get 864.
Grab the next digit (8) from the dividend, add it to 864, then carry on: 8648 / 915

Let's proceed to step 6:
8648 divided by 915 is 9 with a remainder of 413.
Record the quotient 9 as the next digit in the result. 
Result so far: 919.0
The remainder is 413 after subtracting 8235 from 8648.
Append the next digit (8) from the dividend to 413 and continue with: 4138 / 915

Let's proceed to step 7:
When dividing 4138 by 915, we get 4 with a remainder of 478.
The number 4 becomes the next digit in our result. 
Result so far: 9194.0
Subtract 3660 from 4138 to get 478.
Include the next digit (8) from the dividend after 478, then repeat: 4788 / 915

Moving on to step 8:
If we divide 4788 by 915, we get 5 and a remainder of 213.
Record the quotient 5 as the next digit in the result. 
Result so far: 91945.0
Subtracting 4575 from 4788 leaves us with 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Advancing to step 9:
915 goes into 2130 2 times with a remainder of 300.
Put 2 as the next digit of the answer. 
Result so far: 91945.2
The remainder is 300 after subtracting 1830 from 2130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 10:
The number 915 fits into 3000 3 times, leaving a remainder of 255.
Put 3 as the next digit of the answer. 
Result so far: 91945.23
Deduct 2745 from 3000 and we're left with 255.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2550, and continue the process.

Let's proceed to step 11:
2550 divided by 915 is 2 with a remainder of 720.
The number 2 becomes the next digit in our result. 
Result so far: 91945.232
Subtract 1830 from 2550 to get 720.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7200, and continue the process.

On to step 12:
If we divide 7200 by 915, we get 7 and a remainder of 795.
The next digit of our result is 7. 
Result so far: 91945.2327
Deduct 6405 from 7200 and we're left with 795.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7950, and continue the process.

Advancing to step 13:
If we divide 7950 by 915, we get 8 and a remainder of 630.
Write down 8 as next digit of the result. 
Result so far: 91945.23278
Subtract 7320 from 7950 to get 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Step 14:
The number 915 fits into 6300 6 times, leaving a remainder of 810.
Use 6 as the next digit of our solution. 
Result so far: 91945.232786
Subtract 5490 from 6300 to get 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8100, and continue the process.

Let's proceed to step 15:
915 can be fit into 8100 8 times, resulting in a remainder of 780.
The next digit of our result is 8. 
Result so far: 91945.2327868
Subtract 7320 from 8100 to get 780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7800, and continue the process.

Step 16:
915 can be fit into 7800 8 times, resulting in a remainder of 480.
Write down 8 as next digit of the result. 
Result so far: 91945.23278688
If we take 7320 away from 7800, we end up with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

The final result is 91945.23278688 with a remainder of 4.8e-07.