Alright, let's work through 1100 times 3690 step by step
1100 × 3690 = 3690 × (1100)
+ 3690 × 0 that is equal 0
+ 3690 × 00 what gives us 0
+ 3690 × 100 what gives us 369000
+ 3690 × 1000 which equals 3690000

= 4059000
