Alright, let's work through 2105 times 6512 step by step
2105 × 6512 = 6512 × (2105)
+ 6512 × 5 what gives us 32560
+ 6512 × 00 what gives us 0
+ 6512 × 100 which equals 651200
+ 6512 × 2000 resulting in 13024000

= 13707760
