No problem, we've got 40200159 and 13339478 to multiply
40200159 × 13339478 = 13339478 × (40200159)
+ 13339478 × 9 which equals 120055302
+ 13339478 × 50 giving us 666973900
+ 13339478 × 100 that equals 1333947800
+ 13339478 × 0000 producing 0
+ 13339478 × 00000 that results in 0
+ 13339478 × 200000 what gives us 2667895600000
+ 13339478 × 0000000 that results in 0
+ 13339478 × 40000000 yielding 533579120000000

= 536249136577002
