Alright, let's work through 3136 times 289 step by step
3136 × 289 = 289 × (3136)
+ 289 × 6 resulting in 1734
+ 289 × 30 that equals 8670
+ 289 × 100 that equals 28900
+ 289 × 3000 that equals 867000

= 906304
