Alright, let's work through 66049323 times 86010015 step by step
66049323 × 86010015 = 86010015 × (66049323)
+ 86010015 × 3 resulting in 258030045
+ 86010015 × 20 what gives us 1720200300
+ 86010015 × 300 producing 25803004500
+ 86010015 × 9000 that results in 774090135000
+ 86010015 × 40000 giving us 3440400600000
+ 86010015 × 000000 yielding 0
+ 86010015 × 6000000 producing 516060090000000
+ 86010015 × 60000000 resulting in 5160600900000000

= 5680903261969845
