Alright, let's work through 63035428 times 63957307 step by step
63035428 × 63957307 = 63957307 × (63035428)
+ 63957307 × 8 yielding 511658456
+ 63957307 × 20 resulting in 1279146140
+ 63957307 × 400 which equals 25582922800
+ 63957307 × 5000 giving us 319786535000
+ 63957307 × 30000 that results in 1918719210000
+ 63957307 × 000000 producing 0
+ 63957307 × 3000000 resulting in 191871921000000
+ 63957307 × 60000000 that results in 3837438420000000

= 4031576220472396
