Alright, let's work through 2906 times 633 step by step
2906 × 633 = 633 × (2906)
+ 633 × 6 that is equal 3798
+ 633 × 00 resulting in 0
+ 633 × 900 that is equal 569700
+ 633 × 2000 that results in 1266000

= 1839498
