Alright, let's work through 7042 times 9489 step by step
7042 × 9489 = 9489 × (7042)
+ 9489 × 2 which equals 18978
+ 9489 × 40 resulting in 379560
+ 9489 × 000 yielding 0
+ 9489 × 7000 producing 66423000

= 66821538
