We look at the division of 66463282 by 78 
The aim is to understand the frequency of 78 in 66463282.

Going ahead to step 1:
The number 78 fits into 6 0 times, leaving a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 78

Moving on to step 2:
78 can be fit into 66 0 times, resulting in a remainder of 66.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 66 after subtracting 0 from 66.
Bring next digit (4) of the dividend behind the 66 and repeat the process: 664 / 78

Advancing to step 3:
When dividing 664 by 78, we get 8 with a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 624 from 664 leaves us with 40.
Bring next digit (6) of the dividend behind the 40 and repeat the process: 406 / 78

Advancing to step 4:
406 divided by 78 is 5 with a remainder of 16.
Record the quotient 5 as the next digit in the result. 
Result so far: 85.0
Subtract 390 from 406 to get 16.
Grab the next digit (3) from the dividend, add it to 16, then carry on: 163 / 78

Going ahead to step 5:
The number 78 fits into 163 2 times, leaving a remainder of 7.
The next digit of our result is 2. 
Result so far: 852.0
Subtract 156 from 163 to get 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 78

Advancing to step 6:
If we divide 72 by 78, we get 0 and a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 8520.0
If we subtract 0 from 72, we get 72.
Bring next digit (8) of the dividend behind the 72 and repeat the process: 728 / 78

Let's proceed to step 7:
The number 78 fits into 728 9 times, leaving a remainder of 26.
Record the quotient 9 as the next digit in the result. 
Result so far: 85209.0
The remainder is 26 after subtracting 702 from 728.
Append the next digit (2) from the dividend to 26 and continue with: 262 / 78

Going ahead to step 8:
78 goes into 262 3 times with a remainder of 28.
Use 3 as the next digit of our solution. 
Result so far: 852093.0
Subtracting 234 from 262 leaves us with 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 9:
When dividing 280 by 78, we get 3 with a remainder of 46.
Record the quotient 3 as the next digit in the result. 
Result so far: 852093.3
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.

Step 10:
78 can be fit into 460 5 times, resulting in a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 852093.35
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.

Let's proceed to step 11:
78 can be fit into 700 8 times, resulting in a remainder of 76.
Record the quotient 8 as the next digit in the result. 
Result so far: 852093.358
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 12:
The number 78 fits into 760 9 times, leaving a remainder of 58.
The number 9 becomes the next digit in our result. 
Result so far: 852093.3589
Subtracting 702 from 760 leaves us with 58.
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 13:
78 can be fit into 580 7 times, resulting in a remainder of 34.
Use 7 as the next digit of our solution. 
Result so far: 852093.35897
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.

Step 14:
If we divide 340 by 78, we get 4 and a remainder of 28.
Use 4 as the next digit of our solution. 
Result so far: 852093.358974
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.

Step 15:
If we divide 280 by 78, we get 3 and a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 852093.3589743
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.

Step 16:
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: 852093.35897435
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.

The quotient of the division is 852093.35897435, and the remainder is 7e-08.