900000000-100000000 = 800000000
17307692.3077
1
1,900,000,000
900000000
900000000
two
200 + 2000 = 22002200 + 900000000 = 900002200900002200 + 23334565789 =24 234 567 989
900000000 feet
900000000
900000000 Hz, or 900000 kHz, or 900 MHz, or 0.9 GHz, or 0.0009 THz, or 0.0000009 and beyond!
Nine Hundred Million or, Nine Zero Zero Zero Zero Zero Zero Zero Zero, or Nine followed by eight zeroes.