No problem, we've got 1339 and 2636 to multiply
1339 × 2636 = 2636 × (1339)
+ 2636 × 9 that results in 23724
+ 2636 × 30 that equals 79080
+ 2636 × 300 resulting in 790800
+ 2636 × 1000 producing 2636000

= 3529604
