We're going to solve 2109 multiplied by 7890
2109 × 7890 = 7890 × (2109)
+ 7890 × 9 resulting in 71010
+ 7890 × 00 resulting in 0
+ 7890 × 100 that equals 789000
+ 7890 × 2000 that equals 15780000

= 16640010
