Alright, let's work through 3495 times 6209 step by step
3495 × 6209 = 6209 × (3495)
+ 6209 × 5 that is equal 31045
+ 6209 × 90 that results in 558810
+ 6209 × 400 that equals 2483600
+ 6209 × 3000 that is equal 18627000

= 21700455
