409042 divided by 50 
The aim is to understand the frequency of 50 in 409042.

Let's proceed to step 1:
4 divided by 50 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 50

Let's proceed to step 2:
50 can be fit into 40 0 times, resulting in a remainder of 40.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 40 leaves us with 40.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 50

Going ahead to step 3:
50 goes into 409 8 times with a remainder of 9.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
Subtract 400 from 409 to get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 50

Advancing to step 4:
When dividing 90 by 50, we get 1 with a remainder of 40.
The next digit of our result is 1. 
Result so far: 81.0
If we take 50 away from 90, we end up with 40.
Fetch the next digit (4) from the dividend, attach it to 40 and continue: 404 / 50

On to step 5:
The number 50 fits into 404 8 times, leaving a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 818.0
If we subtract 400 from 404, we get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 50

On to step 6:
42 divided by 50 is 0 with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 8180.0
The remainder is 42 after subtracting 0 from 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Step 7:
50 can be fit into 420 8 times, resulting in a remainder of 20.
The number 8 becomes the next digit in our result. 
Result so far: 8180.8
The remainder is 20 after subtracting 400 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
If we divide 200 by 50, we get 4 and a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 8180.84
If we subtract 200 from 200, we 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.

Going ahead 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: 8180.84
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
The number 50 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8180.84
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.

Our division results in 8180.84 with a remaining 0.0.