Alright, let's work through 1553 times 6428 step by step
1553 × 6428 = 6428 × (1553)
+ 6428 × 3 which equals 19284
+ 6428 × 50 what gives us 321400
+ 6428 × 500 giving us 3214000
+ 6428 × 1000 that results in 6428000

= 9982684
