No problem, we've got 2389 and 9078 to multiply
2389 × 9078 = 9078 × (2389)
+ 9078 × 9 resulting in 81702
+ 9078 × 80 giving us 726240
+ 9078 × 300 resulting in 2723400
+ 9078 × 2000 resulting in 18156000

= 21687342
