Alright, let's work through 2106 times 1559 step by step
2106 × 1559 = 1559 × (2106)
+ 1559 × 6 resulting in 9354
+ 1559 × 00 resulting in 0
+ 1559 × 100 producing 155900
+ 1559 × 2000 that is equal 3118000

= 3283254
