We look at the division of 442936 by 78 
The aim is to understand the frequency of 78 in 442936.

Going ahead to step 1:
78 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (4) from the dividend, add it to 4, then carry on: 44 / 78

Step 2:
44 divided by 78 is 0 with a remainder of 44.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 44, we end up with 44.
Append the next digit (2) from the dividend to 44 and continue with: 442 / 78

Advancing to step 3:
The number 78 fits into 442 5 times, leaving a remainder of 52.
Put 5 as the next digit of the answer. 
Result so far: 5.0
If we take 390 away from 442, we end up with 52.
Append the next digit (9) from the dividend to 52 and continue with: 529 / 78

Moving on to step 4:
The number 78 fits into 529 6 times, leaving a remainder of 61.
Record the quotient 6 as the next digit in the result. 
Result so far: 56.0
Subtracting 468 from 529 leaves us with 61.
Take the next digit (3) from the dividend and append it to 61, then repeat: 613 / 78

Step 5:
The number 78 fits into 613 7 times, leaving a remainder of 67.
The number 7 becomes the next digit in our result. 
Result so far: 567.0
If we subtract 546 from 613, we get 67.
Append the next digit (6) from the dividend to 67 and continue with: 676 / 78

Let's proceed to step 6:
78 goes into 676 8 times with a remainder of 52.
The number 8 becomes the next digit in our result. 
Result so far: 5678.0
Subtracting 624 from 676 leaves us with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 7:
78 can be fit into 520 6 times, resulting in a remainder of 52.
The next digit of our result is 6. 
Result so far: 5678.6
Deduct 468 from 520 and we're left with 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

On to step 8:
78 goes into 520 6 times with a remainder of 52.
Write down 6 as next digit of the result. 
Result so far: 5678.66
Subtract 468 from 520 to get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

After the division, we end up with 5678.66 and a remainder of 0.052.