Alright, let's work through 17997623 times 99437960 step by step
17997623 × 99437960 = 99437960 × (17997623)
+ 99437960 × 3 what gives us 298313880
+ 99437960 × 20 producing 1988759200
+ 99437960 × 600 that equals 59662776000
+ 99437960 × 7000 that results in 696065720000
+ 99437960 × 90000 yielding 8949416400000
+ 99437960 × 900000 producing 89494164000000
+ 99437960 × 7000000 which equals 696065720000000
+ 99437960 × 10000000 which equals 994379600000000

= 1789646915969080
