No problem, we've got 8644 and 4702 to multiply
8644 × 4702 = 4702 × (8644)
+ 4702 × 4 that equals 18808
+ 4702 × 40 what gives us 188080
+ 4702 × 600 giving us 2821200
+ 4702 × 8000 that equals 37616000

= 40644088
