Alright, let's work through 19797738 times 99897101 step by step
19797738 × 99897101 = 99897101 × (19797738)
+ 99897101 × 8 producing 799176808
+ 99897101 × 30 what gives us 2996913030
+ 99897101 × 700 that results in 69927970700
+ 99897101 × 7000 what gives us 699279707000
+ 99897101 × 90000 that equals 8990739090000
+ 99897101 × 700000 that equals 69927970700000
+ 99897101 × 9000000 yielding 899073909000000
+ 99897101 × 10000000 producing 998971010000000

= 1977736632557538
