We look at the division of 404519 by 49 
The aim is to understand the frequency of 49 in 404519.

On to step 1:
4 divided by 49 is 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 49

Step 2:
The number 49 fits into 40 0 times, leaving a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 40 leaves us with 40.
Bring next digit (4) of the dividend behind the 40 and repeat the process: 404 / 49

Moving on to step 3:
404 divided by 49 is 8 with a remainder of 12.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we take 392 away from 404, we end up with 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 49

On to step 4:
If we divide 125 by 49, we get 2 and a remainder of 27.
Put 2 as the next digit of the answer. 
Result so far: 82.0
If we take 98 away from 125, we end up with 27.
Include the next digit (1) from the dividend after 27, then repeat: 271 / 49

Going ahead to step 5:
If we divide 271 by 49, we get 5 and a remainder of 26.
Write down 5 as next digit of the result. 
Result so far: 825.0
Subtract 245 from 271 to get 26.
Grab the next digit (9) from the dividend, add it to 26, then carry on: 269 / 49

Let's proceed to step 6:
49 goes into 269 5 times with a remainder of 24.
Record the quotient 5 as the next digit in the result. 
Result so far: 8255.0
The remainder is 24 after subtracting 245 from 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 7:
49 goes into 240 4 times with a remainder of 44.
The number 4 becomes the next digit in our result. 
Result so far: 8255.4
Subtracting 196 from 240 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 8:
When dividing 440 by 49, we get 8 with a remainder of 48.
Use 8 as the next digit of our solution. 
Result so far: 8255.48
Deduct 392 from 440 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 9:
When dividing 480 by 49, we get 9 with a remainder of 39.
Put 9 as the next digit of the answer. 
Result so far: 8255.489
The remainder is 39 after subtracting 441 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 10:
49 goes into 390 7 times with a remainder of 47.
Write down 7 as next digit of the result. 
Result so far: 8255.4897
Subtract 343 from 390 to get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Advancing to step 11:
When dividing 470 by 49, we get 9 with a remainder of 29.
The next digit of our result is 9. 
Result so far: 8255.48979
Deduct 441 from 470 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Moving on to step 12:
When dividing 290 by 49, we get 5 with a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 8255.489795
Subtract 245 from 290 to get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 13:
450 divided by 49 is 9 with a remainder of 9.
Use 9 as the next digit of our solution. 
Result so far: 8255.4897959
Subtract 441 from 450 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 14:
If we divide 90 by 49, we get 1 and a remainder of 41.
Use 1 as the next digit of our solution. 
Result so far: 8255.48979591
Deduct 49 from 90 and we're left with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

The final outcome is 8255.48979591, with a leftover of 4.1e-08.