Let's do the math:
Given: size of file (309,505,959 bytes), time needed = 14 hours * 3600 sec/1 hour = 50,400 sec
Find: download speed
50,400 sec * k bytes/1 sec = 309,505,959 bytes
k = 6141 bytes/sec = 49,127 bits/sec = 49,127 bps (this is your download speed for 14 hours)
Max speed of a phone modem: 53,000 bps (maximum allowed by FCC), typically less
Looks to me like you have a 56K connection, so use a download manager to break it up into parts or get broadband.
damn you are a math genius

but 53,000 bps can't be get more? or am i false?