We're going to solve 8621 multiplied by 1400
8621 × 1400 = 1400 × (8621)
+ 1400 × 1 which equals 1400
+ 1400 × 20 that results in 28000
+ 1400 × 600 resulting in 840000
+ 1400 × 8000 that results in 11200000

= 12069400
