So the XXX/780 was actually an incredibly simple "cipher" to figure out. Basically the 30 Letters Provided for each listen are generated. Those letters often repeat (but that doesnt matter). You simply take each letter provided in that 30 and count it once. so lets just say you have abcde abcde abcde abcde abcde abcde. All you would do is make a list of ABCDE and translate that to numbers 1-26. meaning you get 1 + 2 + 3 + 4 + 5 = 15. That would mean you get 15/780. The total 780 is actually 26 (letters of the alphabet) x 30. Its impossible to have a total of 780 ever, and the obvious maximum you could get was if you were to get all 26 letters in that list is 351. From this point on though i have no idea whats really important about those numbers though.
My Possible Hypothesis is maybe you need to take the 30 digit actual total and get its difference for the given total of "non Repeat". in this case if we take my prior example you get 15/780, but the actual is 90/780 that difference is 75. but even then idk how that is useful. If anyone can brain storm this further, possibly connect dots i never figured out that would be awesome. i did figure out the "Look inside" bit but that was about it. no idea what else to do here for now
it could even be possible we need to take that remainder and somehow divide it up into another string of letters that equal the same total, or Convert that into letters just based on all the single digit letters (ex. A-I, 253 = BEC) but honestly im lost.... there must be something else hidden that isnt obvious. I dont know there are 2 voices talking the entire time but no idea what the background is saying.