Alright, let's work through 76410676 times 39645101 step by step
76410676 × 39645101 = 39645101 × (76410676)
+ 39645101 × 6 resulting in 237870606
+ 39645101 × 70 what gives us 2775157070
+ 39645101 × 600 that equals 23787060600
+ 39645101 × 0000 producing 0
+ 39645101 × 10000 that equals 396451010000
+ 39645101 × 400000 producing 15858040400000
+ 39645101 × 6000000 that is equal 237870606000000
+ 39645101 × 70000000 which equals 2775157070000000

= 3029308967498276
