Alright, let's work through 50951391 times 98015478 step by step
50951391 × 98015478 = 98015478 × (50951391)
+ 98015478 × 1 which equals 98015478
+ 98015478 × 90 what gives us 8821393020
+ 98015478 × 300 giving us 29404643400
+ 98015478 × 1000 giving us 98015478000
+ 98015478 × 50000 that equals 4900773900000
+ 98015478 × 900000 that is equal 88213930200000
+ 98015478 × 0000000 which equals 0
+ 98015478 × 50000000 yielding 4900773900000000

= 4994024943629898
