Alright, let's work through 16427478 times 80599020 step by step
16427478 × 80599020 = 80599020 × (16427478)
+ 80599020 × 8 what gives us 644792160
+ 80599020 × 70 what gives us 5641931400
+ 80599020 × 400 producing 32239608000
+ 80599020 × 7000 what gives us 564193140000
+ 80599020 × 20000 that is equal 1611980400000
+ 80599020 × 400000 giving us 32239608000000
+ 80599020 × 6000000 resulting in 483594120000000
+ 80599020 × 10000000 producing 805990200000000

= 1324038627871560
