No problem, we've got 7870 and 5871 to multiply
7870 × 5871 = 5871 × (7870)
+ 5871 × 0 what gives us 0
+ 5871 × 70 that is equal 410970
+ 5871 × 800 producing 4696800
+ 5871 × 7000 giving us 41097000

= 46204770
