We're dividing 52659 by 78 
The aim is to understand the frequency of 78 in 52659.

Step 1:
When dividing 5 by 78, we get 0 with a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (2) from the dividend, attach it to 5 and continue: 52 / 78

Advancing to step 2:
78 can be fit into 52 0 times, resulting in a remainder of 52.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 52 to get 52.
Bring next digit (6) of the dividend behind the 52 and repeat the process: 526 / 78

Moving on to step 3:
When dividing 526 by 78, we get 6 with a remainder of 58.
The next digit of our result is 6. 
Result so far: 6.0
If we subtract 468 from 526, we get 58.
Take the next digit (5) from the dividend and append it to 58, then repeat: 585 / 78

Moving on to step 4:
If we divide 585 by 78, we get 7 and a remainder of 39.
Write down 7 as next digit of the result. 
Result so far: 67.0
If we take 546 away from 585, we end up with 39.
Grab the next digit (9) from the dividend, add it to 39, then carry on: 399 / 78

Advancing to step 5:
The number 78 fits into 399 5 times, leaving a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 675.0
If we subtract 390 from 399, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 6:
90 divided by 78 is 1 with a remainder of 12.
Use 1 as the next digit of our solution. 
Result so far: 675.1
Subtract 78 from 90 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 7:
120 divided by 78 is 1 with a remainder of 42.
The number 1 becomes the next digit in our result. 
Result so far: 675.11
Subtracting 78 from 120 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Our division results in 675.11 with a remaining 0.042.