We're going to solve 1901 multiplied by 8640
1901 × 8640 = 8640 × (1901)
+ 8640 × 1 what gives us 8640
+ 8640 × 00 that equals 0
+ 8640 × 900 which equals 7776000
+ 8640 × 1000 what gives us 8640000

= 16424640
