Alright, let's work through 1660 times 7133 step by step
1660 × 7133 = 7133 × (1660)
+ 7133 × 0 that results in 0
+ 7133 × 60 what gives us 427980
+ 7133 × 600 what gives us 4279800
+ 7133 × 1000 that is equal 7133000

= 11840780
