Alright, let's work through 9904 times 9046 step by step
9904 × 9046 = 9046 × (9904)
+ 9046 × 4 that is equal 36184
+ 9046 × 00 yielding 0
+ 9046 × 900 yielding 8141400
+ 9046 × 9000 that equals 81414000

= 89591584
