No problem, we've got 1815 and 7884 to multiply
1815 × 7884 = 7884 × (1815)
+ 7884 × 5 producing 39420
+ 7884 × 10 producing 78840
+ 7884 × 800 giving us 6307200
+ 7884 × 1000 that is equal 7884000

= 14309460
