Alright, let's work through 20997237 times 12085743 step by step
20997237 × 12085743 = 12085743 × (20997237)
+ 12085743 × 7 that results in 84600201
+ 12085743 × 30 producing 362572290
+ 12085743 × 200 that is equal 2417148600
+ 12085743 × 7000 that results in 84600201000
+ 12085743 × 90000 that is equal 1087716870000
+ 12085743 × 900000 that results in 10877168700000
+ 12085743 × 0000000 producing 0
+ 12085743 × 20000000 that equals 241714860000000

= 253767210092091
