Alright, let's work through 4989 times 3146 step by step
4989 × 3146 = 3146 × (4989)
+ 3146 × 9 giving us 28314
+ 3146 × 80 that is equal 251680
+ 3146 × 900 that equals 2831400
+ 3146 × 4000 that equals 12584000

= 15695394
