No problem, we've got 4000 and 9147 to multiply
4000 × 9147 = 9147 × (4000)
+ 9147 × 0 that is equal 0
+ 9147 × 00 yielding 0
+ 9147 × 000 that is equal 0
+ 9147 × 4000 that is equal 36588000

= 36588000
