Your best option would be putting them into a scientific notation calculator, but I have done that for you.
1. 57,909,000=5.7909*
2. 108,209,000=1.08209*
3. 227,940,000=2.2794*
4. 149,548,000=1.49548*
5. 778,292,000=7.78292*
6. 4,504,328,000=4.504328*
7. 1,429,370,000=1.42937*
8. 2,874,993,000=2.874993*
I hope that helps. If you have any further questions on this or any other questions, just ask. I am here to help.