Someone has pointed out. Here's my though. 49h/100h is less than "one". And now, you need to define the "one" in your system. For a car dealer "one" may mean 1 car sold today, for the doctor "one" may mean one more patient passed way, for the banker "one" means 1$,...for Billagte "one" probably means 1x10^9$. So, if you define "one" is a full scale of 16 bit number, then "one" ~ 0x10000 (~0xffff).
Let do this 4th grade math :

49h/100h = X?/10000h
X = 49h*10000h/100h = 49h*100h = 4900h

Or you can say (49h/100h is 4900h", where my "one" is 10000h)

hope this help