Alright, let's work through 3340 times 7542 step by step
3340 × 7542 = 7542 × (3340)
+ 7542 × 0 giving us 0
+ 7542 × 40 yielding 301680
+ 7542 × 300 which equals 2262600
+ 7542 × 3000 what gives us 22626000

= 25190280
