No problem, we've got 40395788 and 97392445 to multiply
40395788 × 97392445 = 97392445 × (40395788)
+ 97392445 × 8 which equals 779139560
+ 97392445 × 80 giving us 7791395600
+ 97392445 × 700 that results in 68174711500
+ 97392445 × 5000 that equals 486962225000
+ 97392445 × 90000 that results in 8765320050000
+ 97392445 × 300000 that results in 29217733500000
+ 97392445 × 0000000 giving us 0
+ 97392445 × 40000000 what gives us 3895697800000000

= 3934244561021660
