No problem, we've got 7870 and 4029 to multiply
7870 × 4029 = 4029 × (7870)
+ 4029 × 0 producing 0
+ 4029 × 70 which equals 282030
+ 4029 × 800 that results in 3223200
+ 4029 × 7000 which equals 28203000

= 31708230
