No problem, we've got 8000 and 5205 to multiply
8000 × 5205 = 5205 × (8000)
+ 5205 × 0 that is equal 0
+ 5205 × 00 that is equal 0
+ 5205 × 000 resulting in 0
+ 5205 × 8000 resulting in 41640000

= 41640000
