Alright, let's work through 2611 times 513 step by step
2611 × 513 = 513 × (2611)
+ 513 × 1 yielding 513
+ 513 × 10 that results in 5130
+ 513 × 600 what gives us 307800
+ 513 × 2000 which equals 1026000

= 1339443
