We look at the division of 878396 by 49 
The aim is to understand the frequency of 49 in 878396.

Moving on to step 1:
49 goes into 8 0 times with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 49

Let's proceed to step 2:
The number 49 fits into 87 1 times, leaving a remainder of 38.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 49 from 87, we get 38.
Take the next digit (8) from the dividend and append it to 38, then repeat: 388 / 49

Let's proceed to step 3:
388 divided by 49 is 7 with a remainder of 45.
Use 7 as the next digit of our solution. 
Result so far: 17.0
Deduct 343 from 388 and we're left with 45.
Bring next digit (3) of the dividend behind the 45 and repeat the process: 453 / 49

Going ahead to step 4:
49 can be fit into 453 9 times, resulting in a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 179.0
The remainder is 12 after subtracting 441 from 453.
Fetch the next digit (9) from the dividend, attach it to 12 and continue: 129 / 49

On to step 5:
49 goes into 129 2 times with a remainder of 31.
The number 2 becomes the next digit in our result. 
Result so far: 1792.0
The remainder is 31 after subtracting 98 from 129.
Take the next digit (6) from the dividend and append it to 31, then repeat: 316 / 49

Moving on to step 6:
When dividing 316 by 49, we get 6 with a remainder of 22.
Use 6 as the next digit of our solution. 
Result so far: 17926.0
Subtract 294 from 316 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
When dividing 220 by 49, we get 4 with a remainder of 24.
Write down 4 as next digit of the result. 
Result so far: 17926.4
Subtracting 196 from 220 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 8:
If we divide 240 by 49, we get 4 and a remainder of 44.
Write down 4 as next digit of the result. 
Result so far: 17926.44
Deduct 196 from 240 and we're left 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.

The final outcome is 17926.44, with a leftover of 0.044.