No problem, we've got 3807 and 7878 to multiply
3807 × 7878 = 7878 × (3807)
+ 7878 × 7 which equals 55146
+ 7878 × 00 that is equal 0
+ 7878 × 800 producing 6302400
+ 7878 × 3000 that is equal 23634000

= 29991546
