Alright, let's work through 6990 times 537 step by step
6990 × 537 = 537 × (6990)
+ 537 × 0 giving us 0
+ 537 × 90 resulting in 48330
+ 537 × 900 producing 483300
+ 537 × 6000 that equals 3222000

= 3753630
