We divide 663856 by 49
The aim is to understand the frequency of 49 in 663856.

Advancing to step 1:
When dividing 6 by 49, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (6) from the dividend and append it to 6, then repeat: 66 / 49

Advancing to step 2:
When dividing 66 by 49, we get 1 with a remainder of 17.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 49 from 66, we get 17.
Include the next digit (3) from the dividend after 17, then repeat: 173 / 49

Let's proceed to step 3:
173 divided by 49 is 3 with a remainder of 26.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 26 after subtracting 147 from 173.
Include the next digit (8) from the dividend after 26, then repeat: 268 / 49

Step 4:
268 divided by 49 is 5 with a remainder of 23.
Write down 5 as next digit of the result. 
Result so far: 135.0
Subtract 245 from 268 to get 23.
Append the next digit (5) from the dividend to 23 and continue with: 235 / 49

Advancing to step 5:
49 goes into 235 4 times with a remainder of 39.
Record the quotient 4 as the next digit in the result. 
Result so far: 1354.0
Deduct 196 from 235 and we're left with 39.
Bring next digit (6) of the dividend behind the 39 and repeat the process: 396 / 49

Going ahead to step 6:
If we divide 396 by 49, we get 8 and a remainder of 4.
The next digit of our result is 8. 
Result so far: 13548.0
Subtract 392 from 396 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.

On to step 7:
If we divide 40 by 49, we get 0 and a remainder of 40.
Write down 0 as next digit of the result. 
Result so far: 13548.0
Subtracting 0 from 40 leaves us 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.

Moving on to step 8:
400 divided by 49 is 8 with a remainder of 8.
Record the quotient 8 as the next digit in the result. 
Result so far: 13548.08
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.

On to step 9:
If we divide 80 by 49, we get 1 and a remainder of 31.
The next digit of our result is 1. 
Result so far: 13548.081
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 10:
If we divide 310 by 49, we get 6 and a remainder of 16.
The next digit of our result is 6. 
Result so far: 13548.0816
The remainder is 16 after subtracting 294 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 11:
If we divide 160 by 49, we get 3 and a remainder of 13.
The number 3 becomes the next digit in our result. 
Result so far: 13548.08163
Deduct 147 from 160 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 12:
49 goes into 130 2 times with a remainder of 32.
The next digit of our result is 2. 
Result so far: 13548.081632
If we subtract 98 from 130, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 13:
If we divide 320 by 49, we get 6 and a remainder of 26.
Put 6 as the next digit of the answer. 
Result so far: 13548.0816326
Subtracting 294 from 320 leaves us with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 14:
If we divide 260 by 49, we get 5 and a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 13548.08163265
If we subtract 245 from 260, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 13548.08163265, and the remainder is 1.5e-08.