No problem, we've got 8640 and 4915 to multiply
8640 × 4915 = 4915 × (8640)
+ 4915 × 0 that is equal 0
+ 4915 × 40 that results in 196600
+ 4915 × 600 resulting in 2949000
+ 4915 × 8000 that is equal 39320000

= 42465600
