Alright, let's work through 76668380 times 6910420 step by step
76668380 × 6910420 = 6910420 × (76668380)
+ 6910420 × 0 yielding 0
+ 6910420 × 80 producing 552833600
+ 6910420 × 300 that results in 2073126000
+ 6910420 × 8000 which equals 55283360000
+ 6910420 × 60000 giving us 414625200000
+ 6910420 × 600000 that results in 4146252000000
+ 6910420 × 6000000 yielding 41462520000000
+ 6910420 × 70000000 what gives us 483729400000000

= 529810706519600
