We're going to solve 1389 multiplied by 8634
1389 × 8634 = 8634 × (1389)
+ 8634 × 9 which equals 77706
+ 8634 × 80 resulting in 690720
+ 8634 × 300 which equals 2590200
+ 8634 × 1000 producing 8634000

= 11992626
