We're going to solve 1805 multiplied by 5438
1805 × 5438 = 5438 × (1805)
+ 5438 × 5 that is equal 27190
+ 5438 × 00 that is equal 0
+ 5438 × 800 which equals 4350400
+ 5438 × 1000 giving us 5438000

= 9815590
