No problem, we've got 2115 and 1660 to multiply
2115 × 1660 = 1660 × (2115)
+ 1660 × 5 yielding 8300
+ 1660 × 10 that equals 16600
+ 1660 × 100 giving us 166000
+ 1660 × 2000 that results in 3320000

= 3510900
