Your broker is quoting you the float from over a year ago. May 17, 2016, to be exact. Back when ISBG only had 1.6 billion shares or so outstanding.
The current float is the total outstanding minus restricted shares -- or 4,881,724,408 shares.
Actually that was current as of two weeks ago. It's likely closer to 6 billion now.
ISBG Security Details Share Structure
Market Value $513,301 a/o Jun 12, 2017 Authorized Shares 9,950,000,000 a/o May 31, 2017 Outstanding Shares 5,133,006,685 a/o May 31, 2017 -Restricted 251,282,277 a/o May 31, 2017 -Unrestricted 4,881,724,408 a/o May 31, 2017 Held at DTC 3,960,194,408 a/o May 31, 2017 Float 1,238,350,320 a/o May 17, 2016 Par Value 0.00001
Neither one nor the other. You should re-read Carini's post. Your broker refers to numbers which were at last updated in 2016. As Carini correctly stated the number of unrestricted shares is 4,881,724,408 a/o May 31, 2017. Unrestricted shares is the same as Float.