We look at the division of 63968 by 49 
The aim is to understand the frequency of 49 in 63968.

Step 1:
49 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 49

On to step 2:
49 can be fit into 63 1 times, resulting in a remainder of 14.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 49 away from 63, we end up with 14.
Bring next digit (9) of the dividend behind the 14 and repeat the process: 149 / 49

Step 3:
49 goes into 149 3 times with a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 147 from 149 and we're left with 2.
Grab the next digit (6) from the dividend, add it to 2, then carry on: 26 / 49

Let's proceed to step 4:
When dividing 26 by 49, we get 0 with a remainder of 26.
Write down 0 as next digit of the result. 
Result so far: 130.0
Deduct 0 from 26 and we're left with 26.
Bring next digit (8) of the dividend behind the 26 and repeat the process: 268 / 49

On to step 5:
49 can be fit into 268 5 times, resulting in a remainder of 23.
Put 5 as the next digit of the answer. 
Result so far: 1305.0
The remainder is 23 after subtracting 245 from 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 6:
The number 49 fits into 230 4 times, leaving a remainder of 34.
The next digit of our result is 4. 
Result so far: 1305.4
The remainder is 34 after subtracting 196 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 7:
When dividing 340 by 49, we get 6 with a remainder of 46.
Use 6 as the next digit of our solution. 
Result so far: 1305.46
If we subtract 294 from 340, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Let's proceed to step 8:
If we divide 460 by 49, we get 9 and a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 1305.469
If we take 441 away from 460, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 9:
If we divide 190 by 49, we get 3 and a remainder of 43.
Record the quotient 3 as the next digit in the result. 
Result so far: 1305.4693
If we take 147 away from 190, we end up 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.

On to step 10:
If we divide 430 by 49, we get 8 and a remainder of 38.
Use 8 as the next digit of our solution. 
Result so far: 1305.46938
Subtracting 392 from 430 leaves us with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 11:
When dividing 380 by 49, we get 7 with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 1305.469387
Subtracting 343 from 380 leaves us with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Advancing to step 12:
49 goes into 370 7 times with a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 1305.4693877
Deduct 343 from 370 and we're left with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The final result is 1305.4693877 with a remainder of 2.7e-07.