We're dividing 381279 by 49 
The aim is to understand the frequency of 49 in 381279.

On to step 1:
When dividing 3 by 49, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 49

Moving on to step 2:
When dividing 38 by 49, we get 0 with a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 38 to get 38.
Grab the next digit (1) from the dividend, add it to 38, then carry on: 381 / 49

On to step 3:
49 can be fit into 381 7 times, resulting in a remainder of 38.
The next digit of our result is 7. 
Result so far: 7.0
If we subtract 343 from 381, we get 38.
Take the next digit (2) from the dividend and append it to 38, then repeat: 382 / 49

On to step 4:
382 divided by 49 is 7 with a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 77.0
Subtracting 343 from 382 leaves us with 39.
Include the next digit (7) from the dividend after 39, then repeat: 397 / 49

Going ahead to step 5:
49 can be fit into 397 8 times, resulting in a remainder of 5.
The next digit of our result is 8. 
Result so far: 778.0
Subtract 392 from 397 to get 5.
Bring next digit (9) of the dividend behind the 5 and repeat the process: 59 / 49

Step 6:
When dividing 59 by 49, we get 1 with a remainder of 10.
Record the quotient 1 as the next digit in the result. 
Result so far: 7781.0
Subtract 49 from 59 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 7:
49 can be fit into 100 2 times, resulting in a remainder of 2.
The number 2 becomes the next digit in our result. 
Result so far: 7781.2
If we subtract 98 from 100, we get 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 8:
The number 49 fits into 20 0 times, leaving a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 7781.2
If we subtract 0 from 20, we 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.

Let's proceed to step 9:
49 can be fit into 200 4 times, resulting in a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 7781.204
Subtract 196 from 200 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 10:
If we divide 40 by 49, we get 0 and a remainder of 40.
Put 0 as the next digit of the answer. 
Result so far: 7781.204
If we take 0 away from 40, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 11:
If we divide 400 by 49, we get 8 and a remainder of 8.
The next digit of our result is 8. 
Result so far: 7781.20408
Deduct 392 from 400 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 12:
If we divide 80 by 49, we get 1 and a remainder of 31.
Put 1 as the next digit of the answer. 
Result so far: 7781.204081
Subtract 49 from 80 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 13:
If we divide 310 by 49, we get 6 and a remainder of 16.
Use 6 as the next digit of our solution. 
Result so far: 7781.2040816
Deduct 294 from 310 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 14:
160 divided by 49 is 3 with a remainder of 13.
The next digit of our result is 3. 
Result so far: 7781.20408163
The remainder is 13 after subtracting 147 from 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

After the division, we end up with 7781.20408163 and a remainder of 1.3e-08.