Alright, let's work through 3557 times 9873 step by step
3557 × 9873 = 9873 × (3557)
+ 9873 × 7 what gives us 69111
+ 9873 × 50 that equals 493650
+ 9873 × 500 yielding 4936500
+ 9873 × 3000 producing 29619000

= 35118261
