660593 divided by 78 
The aim is to understand the frequency of 78 in 660593.

Let's proceed to step 1:
6 divided by 78 is 0 with a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Include the next digit (6) from the dividend after 6, then repeat: 66 / 78

Step 2:
66 divided by 78 is 0 with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Fetch the next digit (0) from the dividend, attach it to 66 and continue: 660 / 78

Let's proceed to step 3:
If we divide 660 by 78, we get 8 and a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 624 from 660 leaves us with 36.
Bring next digit (5) of the dividend behind the 36 and repeat the process: 365 / 78

On to step 4:
If we divide 365 by 78, we get 4 and a remainder of 53.
Put 4 as the next digit of the answer. 
Result so far: 84.0
The remainder is 53 after subtracting 312 from 365.
Append the next digit (9) from the dividend to 53 and continue with: 539 / 78

Advancing to step 5:
78 goes into 539 6 times with a remainder of 71.
The next digit of our result is 6. 
Result so far: 846.0
Deduct 468 from 539 and we're left with 71.
Include the next digit (3) from the dividend after 71, then repeat: 713 / 78

On to step 6:
The number 78 fits into 713 9 times, leaving a remainder of 11.
The number 9 becomes the next digit in our result. 
Result so far: 8469.0
The remainder is 11 after subtracting 702 from 713.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
The number 78 fits into 110 1 times, leaving a remainder of 32.
Use 1 as the next digit of our solution. 
Result so far: 8469.1
The remainder is 32 after subtracting 78 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 8:
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: 8469.14
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
When dividing 80 by 78, we get 1 with a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 8469.141
Subtract 78 from 80 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 10:
The number 78 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 8469.141
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 11:
The number 78 fits into 200 2 times, leaving a remainder of 44.
The next digit of our result is 2. 
Result so far: 8469.14102
If we take 156 away from 200, we end up 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.

On to step 12:
The number 78 fits into 440 5 times, leaving a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 8469.141025
Deduct 390 from 440 and we're left 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 13:
If we divide 500 by 78, we get 6 and a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 8469.1410256
Deduct 468 from 500 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 14:
The number 78 fits into 320 4 times, leaving a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 8469.14102564
Deduct 312 from 320 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

After the division, we end up with 8469.14102564 and a remainder of 8e-09.