Alright, let's work through 8902 times 7142 step by step
8902 × 7142 = 7142 × (8902)
+ 7142 × 2 yielding 14284
+ 7142 × 00 that equals 0
+ 7142 × 900 resulting in 6427800
+ 7142 × 8000 yielding 57136000

= 63578084
