No problem, we've got 7870 and 9021 to multiply
7870 × 9021 = 9021 × (7870)
+ 9021 × 0 resulting in 0
+ 9021 × 70 which equals 631470
+ 9021 × 800 that is equal 7216800
+ 9021 × 7000 giving us 63147000

= 70995270
