Alright, let's work through 49089393 times 48879721 step by step
49089393 × 48879721 = 48879721 × (49089393)
+ 48879721 × 3 what gives us 146639163
+ 48879721 × 90 yielding 4399174890
+ 48879721 × 300 which equals 14663916300
+ 48879721 × 9000 giving us 439917489000
+ 48879721 × 80000 yielding 3910377680000
+ 48879721 × 000000 which equals 0
+ 48879721 × 9000000 producing 439917489000000
+ 48879721 × 40000000 that results in 1955188840000000

= 2399475833899353
