How many prison ships came to the Australia when the aboriginal people were there?

That's not detailed enough....

There were 579 men convicts at Portsmouth and 543 at Port Jackson known as Sydney]

There was 193 Women convicts at Portsmouth and 189 At Port Jackson

Finally there was 14 children convicts at Portsmouth and 18 at Port Jackson

There was a total of about 160,000 during the period between 1788 and 1868 .

The majority of the 165,000 convicts transported to Australia were poor and stole for the money or food because if they didn't then their family would die of Starvation