We're dividing 77505904 by 256 
The aim is to understand the frequency of 256 in 77505904.

On to step 1:
If we divide 7 by 256, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Bring next digit (7) of the dividend behind the 7 and repeat the process: 77 / 256

Let's proceed to step 2:
The number 256 fits into 77 0 times, leaving a remainder of 77.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 77, we end up with 77.
Fetch the next digit (5) from the dividend, attach it to 77 and continue: 775 / 256

On to step 3:
256 goes into 775 3 times with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 768 away from 775, we end up with 7.
Grab the next digit (0) from the dividend, add it to 7, then carry on: 70 / 256

Let's proceed to step 4:
70 divided by 256 is 0 with a remainder of 70.
Use 0 as the next digit of our solution. 
Result so far: 30.0
The remainder is 70 after subtracting 0 from 70.
Include the next digit (5) from the dividend after 70, then repeat: 705 / 256

On to step 5:
256 goes into 705 2 times with a remainder of 193.
Write down 2 as next digit of the result. 
Result so far: 302.0
Subtract 512 from 705 to get 193.
Bring next digit (9) of the dividend behind the 193 and repeat the process: 1939 / 256

On to step 6:
When dividing 1939 by 256, we get 7 with a remainder of 147.
Record the quotient 7 as the next digit in the result. 
Result so far: 3027.0
If we take 1792 away from 1939, we end up with 147.
Append the next digit (0) from the dividend to 147 and continue with: 1470 / 256

Going ahead to step 7:
When dividing 1470 by 256, we get 5 with a remainder of 190.
Use 5 as the next digit of our solution. 
Result so far: 30275.0
Subtract 1280 from 1470 to get 190.
Take the next digit (4) from the dividend and append it to 190, then repeat: 1904 / 256

On to step 8:
If we divide 1904 by 256, we get 7 and a remainder of 112.
Use 7 as the next digit of our solution. 
Result so far: 302757.0
If we take 1792 away from 1904, we end up with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

On to step 9:
256 can be fit into 1120 4 times, resulting in a remainder of 96.
Record the quotient 4 as the next digit in the result. 
Result so far: 302757.4
Subtracting 1024 from 1120 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 10:
960 divided by 256 is 3 with a remainder of 192.
Write down 3 as next digit of the result. 
Result so far: 302757.43
If we subtract 768 from 960, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Advancing to step 11:
If we divide 1920 by 256, we get 7 and a remainder of 128.
The next digit of our result is 7. 
Result so far: 302757.437
Subtract 1792 from 1920 to get 128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1280, and continue the process.

Going ahead to step 12:
256 can be fit into 1280 5 times, resulting in a remainder of 0.
The next digit of our result is 5. 
Result so far: 302757.4375
Subtracting 1280 from 1280 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 13:
0 divided by 256 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 302757.4375
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 14:
256 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 302757.4375
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 302757.4375 with a remainder of 0.0.