Alright, let's work through 2140 times 2236 step by step
2140 × 2236 = 2236 × (2140)
+ 2236 × 0 that is equal 0
+ 2236 × 40 producing 89440
+ 2236 × 100 what gives us 223600
+ 2236 × 2000 which equals 4472000

= 4785040
