We look at the division of 275017 by 78 
The aim is to understand the frequency of 78 in 275017.

Advancing to step 1:
78 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Fetch the next digit (7) from the dividend, attach it to 2 and continue: 27 / 78

Going ahead to step 2:
78 goes into 27 0 times with a remainder of 27.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 27, we end up with 27.
Include the next digit (5) from the dividend after 27, then repeat: 275 / 78

Step 3:
78 can be fit into 275 3 times, resulting in a remainder of 41.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 234 away from 275, we end up with 41.
Take the next digit (0) from the dividend and append it to 41, then repeat: 410 / 78

Moving on to step 4:
When dividing 410 by 78, we get 5 with a remainder of 20.
Record the quotient 5 as the next digit in the result. 
Result so far: 35.0
Subtracting 390 from 410 leaves us with 20.
Append the next digit (1) from the dividend to 20 and continue with: 201 / 78

Advancing to step 5:
The number 78 fits into 201 2 times, leaving a remainder of 45.
The next digit of our result is 2. 
Result so far: 352.0
Subtracting 156 from 201 leaves us with 45.
Append the next digit (7) from the dividend to 45 and continue with: 457 / 78

On to step 6:
If we divide 457 by 78, we get 5 and a remainder of 67.
The number 5 becomes the next digit in our result. 
Result so far: 3525.0
If we take 390 away from 457, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 7:
78 goes into 670 8 times with a remainder of 46.
Use 8 as the next digit of our solution. 
Result so far: 3525.8
The remainder is 46 after subtracting 624 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Step 8:
78 can be fit into 460 5 times, resulting in a remainder of 70.
Write down 5 as next digit of the result. 
Result so far: 3525.85
If we subtract 390 from 460, we get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Advancing to step 9:
The number 78 fits into 700 8 times, leaving a remainder of 76.
The next digit of our result is 8. 
Result so far: 3525.858
Subtracting 624 from 700 leaves us 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.

Advancing to step 10:
When dividing 760 by 78, we get 9 with a remainder of 58.
Record the quotient 9 as the next digit in the result. 
Result so far: 3525.8589
If we subtract 702 from 760, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Let's proceed to step 11:
78 goes into 580 7 times with a remainder of 34.
Use 7 as the next digit of our solution. 
Result so far: 3525.85897
Subtracting 546 from 580 leaves us 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.

On to step 12:
78 can be fit into 340 4 times, resulting in a remainder of 28.
Record the quotient 4 as the next digit in the result. 
Result so far: 3525.858974
If we subtract 312 from 340, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 13:
The number 78 fits into 280 3 times, leaving a remainder of 46.
The number 3 becomes the next digit in our result. 
Result so far: 3525.8589743
Subtract 234 from 280 to 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.

Let's proceed to step 14:
78 goes into 460 5 times with a remainder of 70.
The next digit of our result is 5. 
Result so far: 3525.85897435
If we take 390 away from 460, we end up 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 quotient of the division is 3525.85897435, and the remainder is 7e-08.