Alright, let's work through 9979 times 1528 step by step
9979 × 1528 = 1528 × (9979)
+ 1528 × 9 which equals 13752
+ 1528 × 70 giving us 106960
+ 1528 × 900 that equals 1375200
+ 1528 × 9000 which equals 13752000

= 15247912
