Related Clues:

• Many make nothing
• Numbers for millions?
• Six in a million
• One billion has nine of them
• 2/3 of 100?
• 75% of 1,000?
• 000
• Googol’s hundred
• Lots of nothing
• ''Nothing'' numbers
• Digits in binary code
• Aughts
• Two-thirds of 100
• ___ and ones (digits in a 59-Across)
• Round bits