Let's divide 866654 by 78
The aim is to understand the frequency of 78 in 866654.

Going ahead to step 1:
When dividing 8 by 78, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 78

On to step 2:
When dividing 86 by 78, we get 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 78 from 86 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 78

Advancing to step 3:
86 divided by 78 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtract 78 from 86 to get 8.
Include the next digit (6) from the dividend after 8, then repeat: 86 / 78

Going ahead to step 4:
86 divided by 78 is 1 with a remainder of 8.
The number 1 becomes the next digit in our result. 
Result so far: 111.0
If we take 78 away from 86, we end up with 8.
Fetch the next digit (5) from the dividend, attach it to 8 and continue: 85 / 78

Let's proceed to step 5:
When dividing 85 by 78, we get 1 with a remainder of 7.
Write down 1 as next digit of the result. 
Result so far: 1111.0
If we subtract 78 from 85, we get 7.
Include the next digit (4) from the dividend after 7, then repeat: 74 / 78

Going ahead to step 6:
The number 78 fits into 74 0 times, leaving a remainder of 74.
Put 0 as the next digit of the answer. 
Result so far: 11110.0
The remainder is 74 after subtracting 0 from 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Let's proceed to step 7:
If we divide 740 by 78, we get 9 and a remainder of 38.
Write down 9 as next digit of the result. 
Result so far: 11110.9
Deduct 702 from 740 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 8:
The number 78 fits into 380 4 times, leaving a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 11110.94
If we subtract 312 from 380, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 9:
If we divide 680 by 78, we get 8 and a remainder of 56.
Write down 8 as next digit of the result. 
Result so far: 11110.948
If we take 624 away from 680, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Moving on to step 10:
560 divided by 78 is 7 with a remainder of 14.
The next digit of our result is 7. 
Result so far: 11110.9487
If we subtract 546 from 560, we get 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 11:
140 divided by 78 is 1 with a remainder of 62.
The number 1 becomes the next digit in our result. 
Result so far: 11110.94871
The remainder is 62 after subtracting 78 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 12:
78 goes into 620 7 times with a remainder of 74.
Put 7 as the next digit of the answer. 
Result so far: 11110.948717
Deduct 546 from 620 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 13:
78 goes into 740 9 times with a remainder of 38.
Use 9 as the next digit of our solution. 
Result so far: 11110.9487179
Deduct 702 from 740 and we're left with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

On to step 14:
If we divide 380 by 78, we get 4 and a remainder of 68.
Use 4 as the next digit of our solution. 
Result so far: 11110.94871794
Subtract 312 from 380 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Our division results in 11110.94871794 with a remaining 6.8e-08.