How do I register for Microsoft synapse?

Could you please explain the process of registering for Microsoft Synapse in a step-by-step manner? Are there any prerequisites or specific requirements that I need to meet before I can sign up? Additionally, could you also clarify if there are any associated costs or fees that I should be aware of? I'm particularly interested in understanding the overall sign-up process and ensuring that I have all the necessary information to successfully register for Microsoft Synapse.