We look at the division of 782426 by 78 
The aim is to understand the frequency of 78 in 782426.

On to step 1:
78 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 78

Let's proceed to step 2:
78 can be fit into 78 1 times, resulting in a remainder of 0.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 78 from 78 leaves us with 0.
Append the next digit (2) from the dividend to 0 and continue with: 2 / 78

Going ahead to step 3:
78 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 2 to get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 78

Going ahead to step 4:
78 goes into 24 0 times with a remainder of 24.
Record the quotient 0 as the next digit in the result. 
Result so far: 100.0
If we subtract 0 from 24, we get 24.
Include the next digit (2) from the dividend after 24, then repeat: 242 / 78

Going ahead to step 5:
When dividing 242 by 78, we get 3 with a remainder of 8.
Put 3 as the next digit of the answer. 
Result so far: 1003.0
Deduct 234 from 242 and we're left with 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 78

Going ahead to step 6:
78 can be fit into 86 1 times, resulting in a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 10031.0
Subtracting 78 from 86 leaves us 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.

Advancing to step 7:
80 divided by 78 is 1 with a remainder of 2.
The number 1 becomes the next digit in our result. 
Result so far: 10031.1
Deduct 78 from 80 and we're left with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
20 divided by 78 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 10031.1
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 9:
When dividing 200 by 78, we get 2 with a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 10031.102
Subtract 156 from 200 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Moving on to step 10:
78 can be fit into 440 5 times, resulting in a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 10031.1025
Deduct 390 from 440 and we're left with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 11:
When dividing 500 by 78, we get 6 with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 10031.10256
Subtracting 468 from 500 leaves us with 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 12:
When dividing 320 by 78, we get 4 with a remainder of 8.
The next digit of our result is 4. 
Result so far: 10031.102564
If we subtract 312 from 320, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 13:
When dividing 80 by 78, we get 1 with a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 10031.1025641
The remainder is 2 after subtracting 78 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Moving on to step 14:
If we divide 20 by 78, we get 0 and a remainder of 20.
The next digit of our result is 0. 
Result so far: 10031.1025641
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The quotient of the division is 10031.1025641, and the remainder is 2e-08.