We're dividing 22648 by 78 
The aim is to understand the frequency of 78 in 22648.

On to step 1:
78 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 78

On to step 2:
If we divide 22 by 78, we get 0 and a remainder of 22.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 22, we get 22.
Grab the next digit (6) from the dividend, add it to 22, then carry on: 226 / 78

On to step 3:
78 goes into 226 2 times with a remainder of 70.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 70 after subtracting 156 from 226.
Fetch the next digit (4) from the dividend, attach it to 70 and continue: 704 / 78

Step 4:
78 can be fit into 704 9 times, resulting in a remainder of 2.
The next digit of our result is 9. 
Result so far: 29.0
If we subtract 702 from 704, we get 2.
Bring next digit (8) of the dividend behind the 2 and repeat the process: 28 / 78

Moving on to step 5:
78 can be fit into 28 0 times, resulting in a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 290.0
The remainder is 28 after subtracting 0 from 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 6:
If we divide 280 by 78, we get 3 and a remainder of 46.
The next digit of our result is 3. 
Result so far: 290.3
Subtracting 234 from 280 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

On to step 7:
If we divide 460 by 78, we get 5 and a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 290.35
The remainder is 70 after subtracting 390 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 8:
700 divided by 78 is 8 with a remainder of 76.
The number 8 becomes the next digit in our result. 
Result so far: 290.358
Deduct 624 from 700 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 9:
The number 78 fits into 760 9 times, leaving a remainder of 58.
The next digit of our result is 9. 
Result so far: 290.3589
The remainder is 58 after subtracting 702 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 10:
When dividing 580 by 78, we get 7 with a remainder of 34.
The number 7 becomes the next digit in our result. 
Result so far: 290.35897
If we take 546 away from 580, we end up with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 11:
If we divide 340 by 78, we get 4 and a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 290.358974
The remainder is 28 after subtracting 312 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
280 divided by 78 is 3 with a remainder of 46.
The next digit of our result is 3. 
Result so far: 290.3589743
If we subtract 234 from 280, 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.

On to step 13:
460 divided by 78 is 5 with a remainder of 70.
The next digit of our result is 5. 
Result so far: 290.35897435
Deduct 390 from 460 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

The final outcome is 290.35897435, with a leftover of 7e-08.