No problem, we've got 9878 and 8121 to multiply
9878 × 8121 = 8121 × (9878)
+ 8121 × 8 yielding 64968
+ 8121 × 70 giving us 568470
+ 8121 × 800 resulting in 6496800
+ 8121 × 9000 which equals 73089000

= 80219238
