No problem, we've got 6131 and 2156 to multiply
6131 × 2156 = 2156 × (6131)
+ 2156 × 1 that equals 2156
+ 2156 × 30 giving us 64680
+ 2156 × 100 yielding 215600
+ 2156 × 6000 resulting in 12936000

= 13218436
