Let's divide 78804239 by 305
The aim is to understand the frequency of 305 in 78804239.

Advancing to step 1:
7 divided by 305 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 305

On to step 2:
305 can be fit into 78 0 times, resulting in a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 78 to get 78.
Append the next digit (8) from the dividend to 78 and continue with: 788 / 305

Step 3:
The number 305 fits into 788 2 times, leaving a remainder of 178.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 610 from 788 leaves us with 178.
Grab the next digit (0) from the dividend, add it to 178, then carry on: 1780 / 305

Let's proceed to step 4:
1780 divided by 305 is 5 with a remainder of 255.
The next digit of our result is 5. 
Result so far: 25.0
If we subtract 1525 from 1780, we get 255.
Bring next digit (4) of the dividend behind the 255 and repeat the process: 2554 / 305

Advancing to step 5:
If we divide 2554 by 305, we get 8 and a remainder of 114.
Use 8 as the next digit of our solution. 
Result so far: 258.0
If we take 2440 away from 2554, we end up with 114.
Bring next digit (2) of the dividend behind the 114 and repeat the process: 1142 / 305

Step 6:
If we divide 1142 by 305, we get 3 and a remainder of 227.
Write down 3 as next digit of the result. 
Result so far: 2583.0
If we subtract 915 from 1142, we get 227.
Bring next digit (3) of the dividend behind the 227 and repeat the process: 2273 / 305

Moving on to step 7:
305 can be fit into 2273 7 times, resulting in a remainder of 138.
The number 7 becomes the next digit in our result. 
Result so far: 25837.0
Deduct 2135 from 2273 and we're left with 138.
Append the next digit (9) from the dividend to 138 and continue with: 1389 / 305

Advancing to step 8:
The number 305 fits into 1389 4 times, leaving a remainder of 169.
Use 4 as the next digit of our solution. 
Result so far: 258374.0
Subtract 1220 from 1389 to get 169.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1690, and continue the process.

Step 9:
The number 305 fits into 1690 5 times, leaving a remainder of 165.
Use 5 as the next digit of our solution. 
Result so far: 258374.5
Subtract 1525 from 1690 to get 165.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1650, and continue the process.

Advancing to step 10:
When dividing 1650 by 305, we get 5 with a remainder of 125.
Write down 5 as next digit of the result. 
Result so far: 258374.55
The remainder is 125 after subtracting 1525 from 1650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

The final outcome is 258374.55, with a leftover of 0.125.