No problem, we've got 6687 and 3987 to multiply
6687 × 3987 = 3987 × (6687)
+ 3987 × 7 that results in 27909
+ 3987 × 80 that results in 318960
+ 3987 × 600 that equals 2392200
+ 3987 × 6000 that is equal 23922000

= 26661069
