No problem, we've got 8682 and 2121 to multiply
8682 × 2121 = 2121 × (8682)
+ 2121 × 2 what gives us 4242
+ 2121 × 80 yielding 169680
+ 2121 × 600 which equals 1272600
+ 2121 × 8000 that is equal 16968000

= 18414522
