Alright, let's work through 28489143 times 51649053 step by step
28489143 × 51649053 = 51649053 × (28489143)
+ 51649053 × 3 resulting in 154947159
+ 51649053 × 40 giving us 2065962120
+ 51649053 × 100 what gives us 5164905300
+ 51649053 × 9000 producing 464841477000
+ 51649053 × 80000 what gives us 4131924240000
+ 51649053 × 400000 that results in 20659621200000
+ 51649053 × 8000000 resulting in 413192424000000
+ 51649053 × 20000000 yielding 1032981060000000

= 1471437256731579
