No problem, we've got 4821 and 8158 to multiply
4821 × 8158 = 8158 × (4821)
+ 8158 × 1 that is equal 8158
+ 8158 × 20 that is equal 163160
+ 8158 × 800 yielding 6526400
+ 8158 × 4000 that results in 32632000

= 39329718
