Alright, let's work through 3557 times 6078 step by step
3557 × 6078 = 6078 × (3557)
+ 6078 × 7 that is equal 42546
+ 6078 × 50 that equals 303900
+ 6078 × 500 which equals 3039000
+ 6078 × 3000 giving us 18234000

= 21619446
