No problem, we've got 7834 and 9880 to multiply
7834 × 9880 = 9880 × (7834)
+ 9880 × 4 that equals 39520
+ 9880 × 30 that equals 296400
+ 9880 × 800 resulting in 7904000
+ 9880 × 7000 producing 69160000

= 77399920
