Alright, let's work through 84934869 times 66773934 step by step
84934869 × 66773934 = 66773934 × (84934869)
+ 66773934 × 9 what gives us 600965406
+ 66773934 × 60 giving us 4006436040
+ 66773934 × 800 resulting in 53419147200
+ 66773934 × 4000 which equals 267095736000
+ 66773934 × 30000 yielding 2003218020000
+ 66773934 × 900000 that results in 60096540600000
+ 66773934 × 4000000 what gives us 267095736000000
+ 66773934 × 80000000 that equals 5341914720000000

= 5671435336904646
