Alright, let's work through 49873975 times 64998949 step by step
49873975 × 64998949 = 64998949 × (49873975)
+ 64998949 × 5 resulting in 324994745
+ 64998949 × 70 that equals 4549926430
+ 64998949 × 900 that is equal 58499054100
+ 64998949 × 3000 giving us 194996847000
+ 64998949 × 70000 which equals 4549926430000
+ 64998949 × 800000 producing 51999159200000
+ 64998949 × 9000000 yielding 584990541000000
+ 64998949 × 40000000 what gives us 2599957960000000

= 3241755957452275
