Alright, let's work through 40724651 times 20130093 step by step
40724651 × 20130093 = 20130093 × (40724651)
+ 20130093 × 1 that is equal 20130093
+ 20130093 × 50 producing 1006504650
+ 20130093 × 600 which equals 12078055800
+ 20130093 × 4000 giving us 80520372000
+ 20130093 × 20000 that equals 402601860000
+ 20130093 × 700000 yielding 14091065100000
+ 20130093 × 0000000 producing 0
+ 20130093 × 40000000 resulting in 805203720000000

= 819791012022543
