Alright, let's work through 3306 times 121 step by step
3306 × 121 = 121 × (3306)
+ 121 × 6 that results in 726
+ 121 × 00 that is equal 0
+ 121 × 300 what gives us 36300
+ 121 × 3000 resulting in 363000

= 400026
