We're going to solve 9105 multiplied by 2101
9105 × 2101 = 2101 × (9105)
+ 2101 × 5 that is equal 10505
+ 2101 × 00 that equals 0
+ 2101 × 100 producing 210100
+ 2101 × 9000 giving us 18909000

= 19129605
