Alright, let's work through 4988 times 8330 step by step
4988 × 8330 = 8330 × (4988)
+ 8330 × 8 what gives us 66640
+ 8330 × 80 which equals 666400
+ 8330 × 900 what gives us 7497000
+ 8330 × 4000 what gives us 33320000

= 41550040
