No problem, we've got 1686 and 8151 to multiply
1686 × 8151 = 8151 × (1686)
+ 8151 × 6 that is equal 48906
+ 8151 × 80 that equals 652080
+ 8151 × 600 that is equal 4890600
+ 8151 × 1000 producing 8151000

= 13742586
