Alright, let's work through 21231319 times 35301909 step by step
21231319 × 35301909 = 35301909 × (21231319)
+ 35301909 × 9 that equals 317717181
+ 35301909 × 10 which equals 353019090
+ 35301909 × 300 that equals 10590572700
+ 35301909 × 1000 that results in 35301909000
+ 35301909 × 30000 producing 1059057270000
+ 35301909 × 200000 that results in 7060381800000
+ 35301909 × 1000000 giving us 35301909000000
+ 35301909 × 20000000 what gives us 706038180000000

= 749506091287971
