Alright, let's work through 49664802 times 405116 step by step
49664802 × 405116 = 405116 × (49664802)
+ 405116 × 2 resulting in 810232
+ 405116 × 00 that results in 0
+ 405116 × 800 that results in 324092800
+ 405116 × 4000 which equals 1620464000
+ 405116 × 60000 that is equal 24306960000
+ 405116 × 600000 giving us 243069600000
+ 405116 × 9000000 that results in 3646044000000
+ 405116 × 40000000 which equals 16204640000000

= 20120005927032
