Alright, let's work through 78102644 times 38579836 step by step
78102644 × 38579836 = 38579836 × (78102644)
+ 38579836 × 4 that equals 154319344
+ 38579836 × 40 resulting in 1543193440
+ 38579836 × 600 that equals 23147901600
+ 38579836 × 2000 yielding 77159672000
+ 38579836 × 00000 that equals 0
+ 38579836 × 100000 that is equal 3857983600000
+ 38579836 × 8000000 yielding 308638688000000
+ 38579836 × 70000000 producing 2700588520000000

= 3013187196686384
