Alright, let's work through 84130575 times 75975545 step by step
84130575 × 75975545 = 75975545 × (84130575)
+ 75975545 × 5 resulting in 379877725
+ 75975545 × 70 what gives us 5318288150
+ 75975545 × 500 that equals 37987772500
+ 75975545 × 0000 giving us 0
+ 75975545 × 30000 that equals 2279266350000
+ 75975545 × 100000 resulting in 7597554500000
+ 75975545 × 4000000 yielding 303902180000000
+ 75975545 × 80000000 what gives us 6078043600000000

= 6391866286788375
