what is meant by a 457 visa and how can one be eligible for it? How much it will cost for my 3 years old daughter for her kindergarten fees?
A 457 visa is a work permit which allows foreigners to work in Australia for up to four years. It is a multiple-entry visa, and with this visa expats can also legally bring their family with them. You can read more about eligability on the Work Permits for Australia page.
The cost of schooling varies in Australia depending on the institution you chooseand fees at kindergartens are not regulated, so its best to contact each kindergarten individually.You can do some background research using the Education and schools in Melbourne page.
Good luck with the move