We're going to solve 1645 multiplied by 5309
1645 × 5309 = 5309 × (1645)
+ 5309 × 5 yielding 26545
+ 5309 × 40 resulting in 212360
+ 5309 × 600 giving us 3185400
+ 5309 × 1000 what gives us 5309000

= 8733305
