No problem, we've got 3881 and 4156 to multiply
3881 × 4156 = 4156 × (3881)
+ 4156 × 1 that results in 4156
+ 4156 × 80 that is equal 332480
+ 4156 × 800 that results in 3324800
+ 4156 × 3000 what gives us 12468000

= 16129436
