No problem, we've got 40540864 and 9719513 to multiply
40540864 × 9719513 = 9719513 × (40540864)
+ 9719513 × 4 giving us 38878052
+ 9719513 × 60 that results in 583170780
+ 9719513 × 800 resulting in 7775610400
+ 9719513 × 0000 yielding 0
+ 9719513 × 40000 producing 388780520000
+ 9719513 × 500000 resulting in 4859756500000
+ 9719513 × 0000000 producing 0
+ 9719513 × 40000000 which equals 388780520000000

= 394037454679232
