We're dividing 780023 by 52 
The aim is to understand the frequency of 52 in 780023.

On to step 1:
52 can be fit into 7 0 times, resulting in a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Bring next digit (8) of the dividend behind the 7 and repeat the process: 78 / 52

On to step 2:
78 divided by 52 is 1 with a remainder of 26.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 52 from 78 and we're left with 26.
Fetch the next digit (0) from the dividend, attach it to 26 and continue: 260 / 52

Moving on to step 3:
52 goes into 260 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 260 from 260 to get 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 52

Moving on to step 4:
When dividing 0 by 52, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
Subtracting 0 from 0 leaves us with 0.
Include the next digit (2) from the dividend after 0, then repeat: 2 / 52

Moving on to step 5:
The number 52 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 1500.0
If we subtract 0 from 2, we get 2.
Bring next digit (3) of the dividend behind the 2 and repeat the process: 23 / 52

Let's proceed to step 6:
52 goes into 23 0 times with a remainder of 23.
Put 0 as the next digit of the answer. 
Result so far: 15000.0
If we take 0 away from 23, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 7:
If we divide 230 by 52, we get 4 and a remainder of 22.
The next digit of our result is 4. 
Result so far: 15000.4
The remainder is 22 after subtracting 208 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
52 goes into 220 4 times with a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 15000.44
Subtract 208 from 220 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.

The final result is 15000.44 with a remainder of 0.012.