Alright, let's work through 77076045 times 9209941 step by step
77076045 × 9209941 = 9209941 × (77076045)
+ 9209941 × 5 giving us 46049705
+ 9209941 × 40 that results in 368397640
+ 9209941 × 000 resulting in 0
+ 9209941 × 6000 that is equal 55259646000
+ 9209941 × 70000 what gives us 644695870000
+ 9209941 × 000000 producing 0
+ 9209941 × 7000000 yielding 64469587000000
+ 9209941 × 70000000 resulting in 644695870000000

= 709865826963345
