Ok, so you get given 192.168.14.50 and told there are a maximum 14 hosts.
Maximum 14 hosts means it's 15 on the netmask, so 4 bits, so it's 32 - 4 = 28 network mask.
That means the networks increase by 16 for each. The nearest multiple of 16 to 50 is 48, so the network is 192.168.14.48/28
The broadcast is 48 + 16 - 1 = 63 -> 192.168.14.63
There are some additions and some subtractions and some multiplication, but I don't see where the long division comes in. Do you have a different method of calculating these?