No problem, we've got 2617 and 6620 to multiply
2617 × 6620 = 6620 × (2617)
+ 6620 × 7 yielding 46340
+ 6620 × 10 what gives us 66200
+ 6620 × 600 that is equal 3972000
+ 6620 × 2000 which equals 13240000

= 17324540
