459907 ÷ 78 
The aim is to understand the frequency of 78 in 459907.

On to step 1:
If we divide 4 by 78, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 4 and we're left with 4.
Append the next digit (5) from the dividend to 4 and continue with: 45 / 78

Let's proceed to step 2:
45 divided by 78 is 0 with a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 45 to get 45.
Bring next digit (9) of the dividend behind the 45 and repeat the process: 459 / 78

On to step 3:
459 divided by 78 is 5 with a remainder of 69.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtract 390 from 459 to get 69.
Include the next digit (9) from the dividend after 69, then repeat: 699 / 78

Moving on to step 4:
When dividing 699 by 78, we get 8 with a remainder of 75.
Use 8 as the next digit of our solution. 
Result so far: 58.0
If we subtract 624 from 699, we get 75.
Fetch the next digit (0) from the dividend, attach it to 75 and continue: 750 / 78

Step 5:
The number 78 fits into 750 9 times, leaving a remainder of 48.
The next digit of our result is 9. 
Result so far: 589.0
If we take 702 away from 750, we end up with 48.
Take the next digit (7) from the dividend and append it to 48, then repeat: 487 / 78

On to step 6:
If we divide 487 by 78, we get 6 and a remainder of 19.
Write down 6 as next digit of the result. 
Result so far: 5896.0
Subtract 468 from 487 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 7:
The number 78 fits into 190 2 times, leaving a remainder of 34.
The next digit of our result is 2. 
Result so far: 5896.2
If we take 156 away from 190, 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.

On to step 8:
The number 78 fits into 340 4 times, leaving a remainder of 28.
Put 4 as the next digit of the answer. 
Result so far: 5896.24
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.

Let's proceed to step 9:
The number 78 fits into 280 3 times, leaving a remainder of 46.
Put 3 as the next digit of the answer. 
Result so far: 5896.243
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 10:
The number 78 fits into 460 5 times, leaving a remainder of 70.
The number 5 becomes the next digit in our result. 
Result so far: 5896.2435
Deduct 390 from 460 and we're left 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.

On to step 11:
If we divide 700 by 78, we get 8 and a remainder of 76.
Put 8 as the next digit of the answer. 
Result so far: 5896.24358
If we take 624 away from 700, we end up 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.

On to step 12:
The number 78 fits into 760 9 times, leaving a remainder of 58.
Put 9 as the next digit of the answer. 
Result so far: 5896.243589
Subtract 702 from 760 to 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.

Moving on to step 13:
When dividing 580 by 78, we get 7 with a remainder of 34.
Put 7 as the next digit of the answer. 
Result so far: 5896.2435897
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.

Advancing to step 14:
When dividing 340 by 78, we get 4 with a remainder of 28.
The next digit of our result is 4. 
Result so far: 5896.24358974
Subtracting 312 from 340 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.

The final outcome is 5896.24358974, with a leftover of 2.8e-08.