No problem, we've got 78179326 and 47840638 to multiply
78179326 × 47840638 = 47840638 × (78179326)
+ 47840638 × 6 what gives us 287043828
+ 47840638 × 20 that equals 956812760
+ 47840638 × 300 producing 14352191400
+ 47840638 × 9000 resulting in 430565742000
+ 47840638 × 70000 what gives us 3348844660000
+ 47840638 × 100000 producing 4784063800000
+ 47840638 × 8000000 which equals 382725104000000
+ 47840638 × 70000000 which equals 3348844660000000

= 3740148834249988
