Alright, let's work through 65721118 times 68551811 step by step
65721118 × 68551811 = 68551811 × (65721118)
+ 68551811 × 8 what gives us 548414488
+ 68551811 × 10 giving us 685518110
+ 68551811 × 100 producing 6855181100
+ 68551811 × 1000 giving us 68551811000
+ 68551811 × 20000 which equals 1371036220000
+ 68551811 × 700000 what gives us 47986267700000
+ 68551811 × 5000000 yielding 342759055000000
+ 68551811 × 60000000 giving us 4113108660000000

= 4505301659844698
