54791250 ÷ 215 
The aim is to understand the frequency of 215 in 54791250.

Step 1:
5 divided by 215 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (4) from the dividend, attach it to 5 and continue: 54 / 215

Going ahead to step 2:
54 divided by 215 is 0 with a remainder of 54.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 54 to get 54.
Grab the next digit (7) from the dividend, add it to 54, then carry on: 547 / 215

Advancing to step 3:
215 goes into 547 2 times with a remainder of 117.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 430 from 547, we get 117.
Fetch the next digit (9) from the dividend, attach it to 117 and continue: 1179 / 215

Let's proceed to step 4:
215 can be fit into 1179 5 times, resulting in a remainder of 104.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
If we take 1075 away from 1179, we end up with 104.
Append the next digit (1) from the dividend to 104 and continue with: 1041 / 215

Let's proceed to step 5:
When dividing 1041 by 215, we get 4 with a remainder of 181.
The next digit of our result is 4. 
Result so far: 254.0
Deduct 860 from 1041 and we're left with 181.
Include the next digit (2) from the dividend after 181, then repeat: 1812 / 215

On to step 6:
215 can be fit into 1812 8 times, resulting in a remainder of 92.
Write down 8 as next digit of the result. 
Result so far: 2548.0
If we subtract 1720 from 1812, we get 92.
Include the next digit (5) from the dividend after 92, then repeat: 925 / 215

Advancing to step 7:
925 divided by 215 is 4 with a remainder of 65.
The next digit of our result is 4. 
Result so far: 25484.0
Subtracting 860 from 925 leaves us with 65.
Take the next digit (0) from the dividend and append it to 65, then repeat: 650 / 215

Going ahead to step 8:
When dividing 650 by 215, we get 3 with a remainder of 5.
The next digit of our result is 3. 
Result so far: 254843.0
Deduct 645 from 650 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 9:
50 divided by 215 is 0 with a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 254843.0
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 10:
500 divided by 215 is 2 with a remainder of 70.
The next digit of our result is 2. 
Result so far: 254843.02
If we subtract 430 from 500, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 11:
The number 215 fits into 700 3 times, leaving a remainder of 55.
Write down 3 as next digit of the result. 
Result so far: 254843.023
Deduct 645 from 700 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 12:
The number 215 fits into 550 2 times, leaving a remainder of 120.
Write down 2 as next digit of the result. 
Result so far: 254843.0232
If we take 430 away from 550, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 13:
The number 215 fits into 1200 5 times, leaving a remainder of 125.
The number 5 becomes the next digit in our result. 
Result so far: 254843.02325
Subtract 1075 from 1200 to get 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Moving on to step 14:
215 goes into 1250 5 times with a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 254843.023255
If we subtract 1075 from 1250, we get 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

After the division, we end up with 254843.023255 and a remainder of 1.75e-05.