No problem, we've got 28107872 and 66675821 to multiply
28107872 × 66675821 = 66675821 × (28107872)
+ 66675821 × 2 that equals 133351642
+ 66675821 × 70 which equals 4667307470
+ 66675821 × 800 which equals 53340656800
+ 66675821 × 7000 producing 466730747000
+ 66675821 × 00000 producing 0
+ 66675821 × 100000 giving us 6667582100000
+ 66675821 × 8000000 producing 533406568000000
+ 66675821 × 20000000 producing 1333516420000000

= 1874115442162912
