Alright, let's work through 49977757 times 90217267 step by step
49977757 × 90217267 = 90217267 × (49977757)
+ 90217267 × 7 producing 631520869
+ 90217267 × 50 giving us 4510863350
+ 90217267 × 700 that equals 63152086900
+ 90217267 × 7000 that is equal 631520869000
+ 90217267 × 70000 giving us 6315208690000
+ 90217267 × 900000 giving us 81195540300000
+ 90217267 × 9000000 that is equal 811955403000000
+ 90217267 × 40000000 what gives us 3608690680000000

= 4508856647330119
