Alright, let's work through 20791271 times 10997209 step by step
20791271 × 10997209 = 10997209 × (20791271)
+ 10997209 × 1 that equals 10997209
+ 10997209 × 70 which equals 769804630
+ 10997209 × 200 resulting in 2199441800
+ 10997209 × 1000 which equals 10997209000
+ 10997209 × 90000 producing 989748810000
+ 10997209 × 700000 that results in 7698046300000
+ 10997209 × 0000000 which equals 0
+ 10997209 × 20000000 producing 219944180000000

= 228645952562639
