Alright, let's work through 18073760 times 7856778 step by step
18073760 × 7856778 = 7856778 × (18073760)
+ 7856778 × 0 yielding 0
+ 7856778 × 60 yielding 471406680
+ 7856778 × 700 that results in 5499744600
+ 7856778 × 3000 what gives us 23570334000
+ 7856778 × 70000 yielding 549974460000
+ 7856778 × 000000 resulting in 0
+ 7856778 × 8000000 that equals 62854224000000
+ 7856778 × 10000000 giving us 78567780000000

= 142001519945280
