Alright, let's work through 2600 times 1380 step by step
2600 × 1380 = 1380 × (2600)
+ 1380 × 0 giving us 0
+ 1380 × 00 producing 0
+ 1380 × 600 producing 828000
+ 1380 × 2000 that is equal 2760000

= 3588000
