We divide 815993 by 50
The aim is to understand the frequency of 50 in 815993.

On to step 1:
50 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 50

Going ahead to step 2:
81 divided by 50 is 1 with a remainder of 31.
The next digit of our result is 1. 
Result so far: 1.0
If we take 50 away from 81, we end up with 31.
Take the next digit (5) from the dividend and append it to 31, then repeat: 315 / 50

Let's proceed to step 3:
The number 50 fits into 315 6 times, leaving a remainder of 15.
Write down 6 as next digit of the result. 
Result so far: 16.0
Subtract 300 from 315 to get 15.
Grab the next digit (9) from the dividend, add it to 15, then carry on: 159 / 50

Step 4:
50 goes into 159 3 times with a remainder of 9.
The next digit of our result is 3. 
Result so far: 163.0
If we take 150 away from 159, we end up with 9.
Append the next digit (9) from the dividend to 9 and continue with: 99 / 50

Moving on to step 5:
50 can be fit into 99 1 times, resulting in a remainder of 49.
Write down 1 as next digit of the result. 
Result so far: 1631.0
If we take 50 away from 99, we end up with 49.
Append the next digit (3) from the dividend to 49 and continue with: 493 / 50

Step 6:
When dividing 493 by 50, we get 9 with a remainder of 43.
Write down 9 as next digit of the result. 
Result so far: 16319.0
Subtracting 450 from 493 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Going ahead to step 7:
50 goes into 430 8 times with a remainder of 30.
Use 8 as the next digit of our solution. 
Result so far: 16319.8
The remainder is 30 after subtracting 400 from 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 8:
300 divided by 50 is 6 with a remainder of 0.
The number 6 becomes the next digit in our result. 
Result so far: 16319.86
Subtract 300 from 300 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 9:
The number 50 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 16319.86
Subtracting 0 from 0 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.

Advancing to step 10:
50 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 16319.86
Subtracting 0 from 0 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.

The final outcome is 16319.86, with a leftover of 0.0.