815202 ÷ 50 
The aim is to understand the frequency of 50 in 815202.

Moving on to step 1:
The number 50 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 50

On to step 2:
The number 50 fits into 81 1 times, leaving a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 50 from 81 leaves us with 31.
Take the next digit (5) from the dividend and append it to 31, then repeat: 315 / 50

Moving on to step 3:
315 divided by 50 is 6 with a remainder of 15.
The number 6 becomes the next digit in our result. 
Result so far: 16.0
Subtract 300 from 315 to get 15.
Fetch the next digit (2) from the dividend, attach it to 15 and continue: 152 / 50

Advancing to step 4:
50 goes into 152 3 times with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 163.0
Subtracting 150 from 152 leaves us with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 50

Going ahead to step 5:
When dividing 20 by 50, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 1630.0
Deduct 0 from 20 and we're left with 20.
Grab the next digit (2) from the dividend, add it to 20, then carry on: 202 / 50

Moving on to step 6:
50 goes into 202 4 times with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 16304.0
If we take 200 away from 202, 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.

Step 7:
The number 50 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 16304.0
Subtract 0 from 20 to get 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 8:
If we divide 200 by 50, we get 4 and a remainder of 0.
The next digit of our result is 4. 
Result so far: 16304.04
Subtracting 200 from 200 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 9:
When dividing 0 by 50, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 16304.04
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
The number 50 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 16304.04
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 16304.04 with a remainder of 0.0.