Alright, let's work through 1540 times 6777 step by step
1540 × 6777 = 6777 × (1540)
+ 6777 × 0 which equals 0
+ 6777 × 40 giving us 271080
+ 6777 × 500 yielding 3388500
+ 6777 × 1000 that equals 6777000

= 10436580
