hi all MT guru's
i m new in mikrotik and i want to share internet connection from one side to another.
my network configuration is below:

i have public ip and public gateway but i can not undestand from where i can start:


i need really help plz plz any one guide me.
thanx in advance,
james

I have so many questions about your configuration i'm not even going to start asking...
You can definitely start by adding as default gateway to "Base Station" the mikrotik that is near the hub, and change that ones default gateway to your internet connection.