Alright, let's work through 64923078 times 56754545 step by step
64923078 × 56754545 = 56754545 × (64923078)
+ 56754545 × 8 giving us 454036360
+ 56754545 × 70 that results in 3972818150
+ 56754545 × 000 resulting in 0
+ 56754545 × 3000 that results in 170263635000
+ 56754545 × 20000 that equals 1135090900000
+ 56754545 × 900000 which equals 51079090500000
+ 56754545 × 4000000 yielding 227018180000000
+ 56754545 × 60000000 that equals 3405272700000000

= 3684679751889510
