Alright, let's work through 9828 times 1791 step by step
9828 × 1791 = 1791 × (9828)
+ 1791 × 8 that results in 14328
+ 1791 × 20 what gives us 35820
+ 1791 × 800 that is equal 1432800
+ 1791 × 9000 that equals 16119000

= 17601948
