64454678 divided by 78 
The aim is to understand the frequency of 78 in 64454678.

Let's proceed to step 1:
78 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 78

Advancing to step 2:
64 divided by 78 is 0 with a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 78

Moving on to step 3:
The number 78 fits into 644 8 times, leaving a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtracting 624 from 644 leaves us with 20.
Take the next digit (5) from the dividend and append it to 20, then repeat: 205 / 78

Let's proceed to step 4:
78 can be fit into 205 2 times, resulting in a remainder of 49.
Use 2 as the next digit of our solution. 
Result so far: 82.0
Deduct 156 from 205 and we're left with 49.
Append the next digit (4) from the dividend to 49 and continue with: 494 / 78

Let's proceed to step 5:
494 divided by 78 is 6 with a remainder of 26.
The next digit of our result is 6. 
Result so far: 826.0
The remainder is 26 after subtracting 468 from 494.
Fetch the next digit (6) from the dividend, attach it to 26 and continue: 266 / 78

Going ahead to step 6:
78 can be fit into 266 3 times, resulting in a remainder of 32.
The number 3 becomes the next digit in our result. 
Result so far: 8263.0
Deduct 234 from 266 and we're left with 32.
Grab the next digit (7) from the dividend, add it to 32, then carry on: 327 / 78

Advancing to step 7:
If we divide 327 by 78, we get 4 and a remainder of 15.
Write down 4 as next digit of the result. 
Result so far: 82634.0
Deduct 312 from 327 and we're left with 15.
Bring next digit (8) of the dividend behind the 15 and repeat the process: 158 / 78

Step 8:
When dividing 158 by 78, we get 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 826342.0
The remainder is 2 after subtracting 156 from 158.
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 9:
20 divided by 78 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 826342.0
Deduct 0 from 20 and we're left 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.

Moving on to step 10:
78 goes into 200 2 times with a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 826342.02
Subtracting 156 from 200 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Let's proceed to step 11:
If we divide 440 by 78, we get 5 and a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 826342.025
Subtracting 390 from 440 leaves us 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.

Going ahead to step 12:
500 divided by 78 is 6 with a remainder of 32.
The next digit of our result is 6. 
Result so far: 826342.0256
Subtract 468 from 500 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 13:
If we divide 320 by 78, we get 4 and a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 826342.02564
Subtract 312 from 320 to 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.

Going ahead to step 14:
When dividing 80 by 78, we get 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 826342.025641
Subtracting 78 from 80 leaves us 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.

Advancing to step 15:
The number 78 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 826342.025641
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 16:
78 can be fit into 200 2 times, resulting in a remainder of 44.
The number 2 becomes the next digit in our result. 
Result so far: 826342.02564102
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.

Our division results in 826342.02564102 with a remaining 4.4e-08.