Alright, let's work through 1540 times 6634 step by step
1540 × 6634 = 6634 × (1540)
+ 6634 × 0 which equals 0
+ 6634 × 40 that equals 265360
+ 6634 × 500 which equals 3317000
+ 6634 × 1000 giving us 6634000

= 10216360
