We're dividing 78517020 by 235 
The aim is to understand the frequency of 235 in 78517020.

Going ahead to step 1:
7 divided by 235 is 0 with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 235

Moving on to step 2:
When dividing 78 by 235, we get 0 with a remainder of 78.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Append the next digit (5) from the dividend to 78 and continue with: 785 / 235

Advancing to step 3:
When dividing 785 by 235, we get 3 with a remainder of 80.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtract 705 from 785 to get 80.
Append the next digit (1) from the dividend to 80 and continue with: 801 / 235

Advancing to step 4:
235 goes into 801 3 times with a remainder of 96.
Use 3 as the next digit of our solution. 
Result so far: 33.0
If we take 705 away from 801, we end up with 96.
Include the next digit (7) from the dividend after 96, then repeat: 967 / 235

Going ahead to step 5:
The number 235 fits into 967 4 times, leaving a remainder of 27.
The number 4 becomes the next digit in our result. 
Result so far: 334.0
The remainder is 27 after subtracting 940 from 967.
Bring next digit (0) of the dividend behind the 27 and repeat the process: 270 / 235

Moving on to step 6:
If we divide 270 by 235, we get 1 and a remainder of 35.
Write down 1 as next digit of the result. 
Result so far: 3341.0
The remainder is 35 after subtracting 235 from 270.
Include the next digit (2) from the dividend after 35, then repeat: 352 / 235

Going ahead to step 7:
235 goes into 352 1 times with a remainder of 117.
Record the quotient 1 as the next digit in the result. 
Result so far: 33411.0
Subtracting 235 from 352 leaves us with 117.
Include the next digit (0) from the dividend after 117, then repeat: 1170 / 235

Step 8:
1170 divided by 235 is 4 with a remainder of 230.
The number 4 becomes the next digit in our result. 
Result so far: 334114.0
If we subtract 940 from 1170, we get 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Going ahead to step 9:
235 goes into 2300 9 times with a remainder of 185.
The next digit of our result is 9. 
Result so far: 334114.9
The remainder is 185 after subtracting 2115 from 2300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Advancing to step 10:
The number 235 fits into 1850 7 times, leaving a remainder of 205.
The number 7 becomes the next digit in our result. 
Result so far: 334114.97
If we subtract 1645 from 1850, we get 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 11:
When dividing 2050 by 235, we get 8 with a remainder of 170.
Record the quotient 8 as the next digit in the result. 
Result so far: 334114.978
If we subtract 1880 from 2050, we get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 12:
235 goes into 1700 7 times with a remainder of 55.
The next digit of our result is 7. 
Result so far: 334114.9787
If we subtract 1645 from 1700, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

On to step 13:
If we divide 550 by 235, we get 2 and a remainder of 80.
The number 2 becomes the next digit in our result. 
Result so far: 334114.97872
The remainder is 80 after subtracting 470 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 14:
When dividing 800 by 235, we get 3 with a remainder of 95.
The number 3 becomes the next digit in our result. 
Result so far: 334114.978723
Deduct 705 from 800 and we're left with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Step 15:
When dividing 950 by 235, we get 4 with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 334114.9787234
If we subtract 940 from 950, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 16:
If we divide 100 by 235, we get 0 and a remainder of 100.
The next digit of our result is 0. 
Result so far: 334114.9787234
If we subtract 0 from 100, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

In conclusion, the division gives 334114.9787234 with a balance of 1e-07.