Alright, let's work through 7760 times 669 step by step
7760 × 669 = 669 × (7760)
+ 669 × 0 that is equal 0
+ 669 × 60 that equals 40140
+ 669 × 700 what gives us 468300
+ 669 × 7000 yielding 4683000

= 5191440
