We're going to solve 66758489 multiplied by 55187144
66758489 × 55187144 = 55187144 × (66758489)
+ 55187144 × 9 what gives us 496684296
+ 55187144 × 80 giving us 4414971520
+ 55187144 × 400 yielding 22074857600
+ 55187144 × 8000 resulting in 441497152000
+ 55187144 × 50000 that results in 2759357200000
+ 55187144 × 700000 resulting in 38631000800000
+ 55187144 × 6000000 yielding 331122864000000
+ 55187144 × 60000000 yielding 3311228640000000

= 3684210345665416
