Alright, let's work through 2229 times 3920 step by step
2229 × 3920 = 3920 × (2229)
+ 3920 × 9 yielding 35280
+ 3920 × 20 that is equal 78400
+ 3920 × 200 yielding 784000
+ 3920 × 2000 what gives us 7840000

= 8737680
