Alright, let's work through 297307 times 3261816 step by step
297307 × 3261816 = 3261816 × (297307)
+ 3261816 × 7 what gives us 22832712
+ 3261816 × 00 resulting in 0
+ 3261816 × 300 what gives us 978544800
+ 3261816 × 7000 that equals 22832712000
+ 3261816 × 90000 producing 293563440000
+ 3261816 × 200000 that results in 652363200000

= 969760729512
