No problem, we've got 4181 and 2170 to multiply
4181 × 2170 = 2170 × (4181)
+ 2170 × 1 that equals 2170
+ 2170 × 80 yielding 173600
+ 2170 × 100 resulting in 217000
+ 2170 × 4000 that equals 8680000

= 9072770
