No problem, we've got 1792 and 8730 to multiply
1792 × 8730 = 8730 × (1792)
+ 8730 × 2 what gives us 17460
+ 8730 × 90 yielding 785700
+ 8730 × 700 that is equal 6111000
+ 8730 × 1000 that is equal 8730000

= 15644160
