Alright, let's work through 4126 times 7216 step by step
4126 × 7216 = 7216 × (4126)
+ 7216 × 6 giving us 43296
+ 7216 × 20 that is equal 144320
+ 7216 × 100 what gives us 721600
+ 7216 × 4000 what gives us 28864000

= 29773216
