Let's calculate 40427028 x 12843831
40427028 × 12843831 = 12843831 × (40427028)
+ 12843831 × 8 producing 102750648
+ 12843831 × 20 which equals 256876620
+ 12843831 × 000 that is equal 0
+ 12843831 × 7000 which equals 89906817000
+ 12843831 × 20000 that results in 256876620000
+ 12843831 × 400000 giving us 5137532400000
+ 12843831 × 0000000 what gives us 0
+ 12843831 × 40000000 yielding 513753240000000

= 519237915464268
