75296715 divided by 216 
The aim is to understand the frequency of 216 in 75296715.

On to step 1:
When dividing 7 by 216, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 216

Let's proceed to step 2:
If we divide 75 by 216, we get 0 and a remainder of 75.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 75 leaves us with 75.
Include the next digit (2) from the dividend after 75, then repeat: 752 / 216

Going ahead to step 3:
752 divided by 216 is 3 with a remainder of 104.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Deduct 648 from 752 and we're left with 104.
Fetch the next digit (9) from the dividend, attach it to 104 and continue: 1049 / 216

On to step 4:
1049 divided by 216 is 4 with a remainder of 185.
Put 4 as the next digit of the answer. 
Result so far: 34.0
Deduct 864 from 1049 and we're left with 185.
Include the next digit (6) from the dividend after 185, then repeat: 1856 / 216

Moving on to step 5:
When dividing 1856 by 216, we get 8 with a remainder of 128.
Record the quotient 8 as the next digit in the result. 
Result so far: 348.0
Deduct 1728 from 1856 and we're left with 128.
Grab the next digit (7) from the dividend, add it to 128, then carry on: 1287 / 216

Advancing to step 6:
216 goes into 1287 5 times with a remainder of 207.
Write down 5 as next digit of the result. 
Result so far: 3485.0
Deduct 1080 from 1287 and we're left with 207.
Grab the next digit (1) from the dividend, add it to 207, then carry on: 2071 / 216

Step 7:
216 goes into 2071 9 times with a remainder of 127.
The next digit of our result is 9. 
Result so far: 34859.0
Subtract 1944 from 2071 to get 127.
Include the next digit (5) from the dividend after 127, then repeat: 1275 / 216

Advancing to step 8:
216 goes into 1275 5 times with a remainder of 195.
The number 5 becomes the next digit in our result. 
Result so far: 348595.0
If we take 1080 away from 1275, we end up with 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Moving on to step 9:
216 goes into 1950 9 times with a remainder of 6.
The number 9 becomes the next digit in our result. 
Result so far: 348595.9
Subtracting 1944 from 1950 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 10:
If we divide 60 by 216, we get 0 and a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 348595.9
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 11:
The number 216 fits into 600 2 times, leaving a remainder of 168.
The number 2 becomes the next digit in our result. 
Result so far: 348595.902
Subtracting 432 from 600 leaves us with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Let's proceed to step 12:
216 goes into 1680 7 times with a remainder of 168.
The next digit of our result is 7. 
Result so far: 348595.9027
If we take 1512 away from 1680, we end up with 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 13:
1680 divided by 216 is 7 with a remainder of 168.
The number 7 becomes the next digit in our result. 
Result so far: 348595.90277
Subtract 1512 from 1680 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

After the division, we end up with 348595.90277 and a remainder of 0.000168.