Alright, let's work through 40402418 times 51899580 step by step
40402418 × 51899580 = 51899580 × (40402418)
+ 51899580 × 8 that results in 415196640
+ 51899580 × 10 producing 518995800
+ 51899580 × 400 which equals 20759832000
+ 51899580 × 2000 that is equal 103799160000
+ 51899580 × 00000 what gives us 0
+ 51899580 × 400000 that equals 20759832000000
+ 51899580 × 0000000 that equals 0
+ 51899580 × 40000000 producing 2075983200000000

= 2096868525184440
