No problem, we've got 1878 and 8331 to multiply
1878 × 8331 = 8331 × (1878)
+ 8331 × 8 that is equal 66648
+ 8331 × 70 that is equal 583170
+ 8331 × 800 which equals 6664800
+ 8331 × 1000 resulting in 8331000

= 15645618
