I have a complicated expression:
(\[Beta] Sinh[h \[Beta]] + (\[Beta] Cosh[h \[Beta]] Sinh[
h \[Beta]])/Sqrt[E^(-4 j \[Beta]) + Sinh[h \[Beta]]^2])/(
Cosh[h \[Beta]] + Sqrt[E^(-4 j \[Beta]) + Sinh[h \[Beta]]^2])
The FullSimplified of the above expression is as

I wish to know about the simplifying process (details of the simplifying process for example step by step). How can I reach this goal?
