Complex sentence: In 2004 Steel realised that his business in the UK was not going as well as he hoped, and so emigrated to Australia where he was hired by Universal Records to A&R the music for the failed Channel Seven talent search series, "Popstars Live".
Split into simpler sentences: In 2004 Steel realised that his business ventures in the UK were not going as well as he hoped. He emigrated to Australia and was hired by Universal Records to A&R the music for the failed Channel Seven talent search series, "Popstars Live".