Alright, let's work through 9940 times 8492 step by step
9940 × 8492 = 8492 × (9940)
+ 8492 × 0 that equals 0
+ 8492 × 40 yielding 339680
+ 8492 × 900 giving us 7642800
+ 8492 × 9000 which equals 76428000

= 84410480
