Alright, let's work through 3902 times 7293 step by step
3902 × 7293 = 7293 × (3902)
+ 7293 × 2 giving us 14586
+ 7293 × 00 giving us 0
+ 7293 × 900 which equals 6563700
+ 7293 × 3000 that equals 21879000

= 28457286
