Alright, let's work through 2936 times 5726 step by step
2936 × 5726 = 5726 × (2936)
+ 5726 × 6 yielding 34356
+ 5726 × 30 giving us 171780
+ 5726 × 900 giving us 5153400
+ 5726 × 2000 that equals 11452000

= 16811536
