We're dividing 50264442 by 409 
The aim is to understand the frequency of 409 in 50264442.

Going ahead to step 1:
If we divide 5 by 409, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Bring next digit (0) of the dividend behind the 5 and repeat the process: 50 / 409

Advancing to step 2:
409 goes into 50 0 times with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 50, we get 50.
Grab the next digit (2) from the dividend, add it to 50, then carry on: 502 / 409

On to step 3:
The number 409 fits into 502 1 times, leaving a remainder of 93.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 409 away from 502, we end up with 93.
Fetch the next digit (6) from the dividend, attach it to 93 and continue: 936 / 409

Let's proceed to step 4:
409 goes into 936 2 times with a remainder of 118.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 818 from 936 leaves us with 118.
Include the next digit (4) from the dividend after 118, then repeat: 1184 / 409

Step 5:
409 goes into 1184 2 times with a remainder of 366.
Put 2 as the next digit of the answer. 
Result so far: 122.0
The remainder is 366 after subtracting 818 from 1184.
Include the next digit (4) from the dividend after 366, then repeat: 3664 / 409

Moving on to step 6:
When dividing 3664 by 409, we get 8 with a remainder of 392.
Put 8 as the next digit of the answer. 
Result so far: 1228.0
Subtract 3272 from 3664 to get 392.
Fetch the next digit (4) from the dividend, attach it to 392 and continue: 3924 / 409

Going ahead to step 7:
If we divide 3924 by 409, we get 9 and a remainder of 243.
Put 9 as the next digit of the answer. 
Result so far: 12289.0
Subtracting 3681 from 3924 leaves us with 243.
Append the next digit (2) from the dividend to 243 and continue with: 2432 / 409

Let's proceed to step 8:
2432 divided by 409 is 5 with a remainder of 387.
The number 5 becomes the next digit in our result. 
Result so far: 122895.0
Subtracting 2045 from 2432 leaves us with 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Advancing to step 9:
If we divide 3870 by 409, we get 9 and a remainder of 189.
The number 9 becomes the next digit in our result. 
Result so far: 122895.9
Subtracting 3681 from 3870 leaves us with 189.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

Advancing to step 10:
When dividing 1890 by 409, we get 4 with a remainder of 254.
Record the quotient 4 as the next digit in the result. 
Result so far: 122895.94
If we subtract 1636 from 1890, we get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Advancing to step 11:
409 can be fit into 2540 6 times, resulting in a remainder of 86.
The next digit of our result is 6. 
Result so far: 122895.946
The remainder is 86 after subtracting 2454 from 2540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 12:
When dividing 860 by 409, we get 2 with a remainder of 42.
Write down 2 as next digit of the result. 
Result so far: 122895.9462
Subtract 818 from 860 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 13:
409 can be fit into 420 1 times, resulting in a remainder of 11.
Use 1 as the next digit of our solution. 
Result so far: 122895.94621
Subtract 409 from 420 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Let's proceed to step 14:
409 can be fit into 110 0 times, resulting in a remainder of 110.
The next digit of our result is 0. 
Result so far: 122895.94621
Subtracting 0 from 110 leaves us with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

On to step 15:
When dividing 1100 by 409, we get 2 with a remainder of 282.
Put 2 as the next digit of the answer. 
Result so far: 122895.9462102
The remainder is 282 after subtracting 818 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Going ahead to step 16:
409 can be fit into 2820 6 times, resulting in a remainder of 366.
The number 6 becomes the next digit in our result. 
Result so far: 122895.94621026
Deduct 2454 from 2820 and we're left with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

The final result is 122895.94621026 with a remainder of 3.66e-07.