Alright, let's work through 4010 times 4090 step by step
4010 × 4090 = 4090 × (4010)
+ 4090 × 0 yielding 0
+ 4090 × 10 that results in 40900
+ 4090 × 000 that is equal 0
+ 4090 × 4000 producing 16360000

= 16400900
