We're dividing 428826 by 78 
The aim is to understand the frequency of 78 in 428826.

Going ahead to step 1:
If we divide 4 by 78, we get 0 and a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 78

Moving on to step 2:
42 divided by 78 is 0 with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 42, we get 42.
Take the next digit (8) from the dividend and append it to 42, then repeat: 428 / 78

Let's proceed to step 3:
The number 78 fits into 428 5 times, leaving a remainder of 38.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we take 390 away from 428, we end up with 38.
Grab the next digit (8) from the dividend, add it to 38, then carry on: 388 / 78

Let's proceed to step 4:
When dividing 388 by 78, we get 4 with a remainder of 76.
Use 4 as the next digit of our solution. 
Result so far: 54.0
Deduct 312 from 388 and we're left with 76.
Include the next digit (2) from the dividend after 76, then repeat: 762 / 78

On to step 5:
If we divide 762 by 78, we get 9 and a remainder of 60.
Record the quotient 9 as the next digit in the result. 
Result so far: 549.0
Subtracting 702 from 762 leaves us with 60.
Bring next digit (6) of the dividend behind the 60 and repeat the process: 606 / 78

Advancing to step 6:
The number 78 fits into 606 7 times, leaving a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 5497.0
If we subtract 546 from 606, we get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 7:
If we divide 600 by 78, we get 7 and a remainder of 54.
Record the quotient 7 as the next digit in the result. 
Result so far: 5497.7
Subtract 546 from 600 to get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Let's proceed to step 8:
When dividing 540 by 78, we get 6 with a remainder of 72.
The number 6 becomes the next digit in our result. 
Result so far: 5497.76
The remainder is 72 after subtracting 468 from 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 9:
78 goes into 720 9 times with a remainder of 18.
Use 9 as the next digit of our solution. 
Result so far: 5497.769
If we take 702 away from 720, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Going ahead to step 10:
The number 78 fits into 180 2 times, leaving a remainder of 24.
The next digit of our result is 2. 
Result so far: 5497.7692
Subtract 156 from 180 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 11:
78 can be fit into 240 3 times, resulting in a remainder of 6.
Write down 3 as next digit of the result. 
Result so far: 5497.76923
If we take 234 away from 240, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 12:
The number 78 fits into 60 0 times, leaving a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 5497.76923
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 13:
If we divide 600 by 78, we get 7 and a remainder of 54.
The next digit of our result is 7. 
Result so far: 5497.7692307
Deduct 546 from 600 and we're left with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 14:
If we divide 540 by 78, we get 6 and a remainder of 72.
Put 6 as the next digit of the answer. 
Result so far: 5497.76923076
Deduct 468 from 540 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Our division results in 5497.76923076 with a remaining 7.2e-08.