Alright, let's work through 40421896 times 67990492 step by step
40421896 × 67990492 = 67990492 × (40421896)
+ 67990492 × 6 giving us 407942952
+ 67990492 × 90 giving us 6119144280
+ 67990492 × 800 that is equal 54392393600
+ 67990492 × 1000 producing 67990492000
+ 67990492 × 20000 which equals 1359809840000
+ 67990492 × 400000 that is equal 27196196800000
+ 67990492 × 0000000 yielding 0
+ 67990492 × 40000000 what gives us 2719619680000000

= 2748304596612832
