Complex sentence: Dubious stat: 280,000 uses multiplied 10 minutes equals 2,800,000 minutes or 5.3 years more likely it was 28,000 uses which would have been 194 days of continuous 24 hour a day 7 day a week use.
Split into simpler sentences: Dubious stat: 280,000 uses multiplied by 10 minutes equals 2,800,000 minutes or 5.3 years. More likely it was 28,000 uses which would have been 194 days of continuous 24 hour a day 7 days a week use.