No problem, we've got 3971 and 4624 to multiply
3971 × 4624 = 4624 × (3971)
+ 4624 × 1 that equals 4624
+ 4624 × 70 giving us 323680
+ 4624 × 900 that equals 4161600
+ 4624 × 3000 that is equal 13872000

= 18361904
