No problem, we've got 6685 and 2158 to multiply
6685 × 2158 = 2158 × (6685)
+ 2158 × 5 which equals 10790
+ 2158 × 80 which equals 172640
+ 2158 × 600 giving us 1294800
+ 2158 × 6000 yielding 12948000

= 14426230
