Alright, let's work through 63705300 times 83385481 step by step
63705300 × 83385481 = 83385481 × (63705300)
+ 83385481 × 0 yielding 0
+ 83385481 × 00 that is equal 0
+ 83385481 × 300 producing 25015644300
+ 83385481 × 5000 yielding 416927405000
+ 83385481 × 00000 resulting in 0
+ 83385481 × 700000 that results in 58369836700000
+ 83385481 × 3000000 that equals 250156443000000
+ 83385481 × 60000000 that results in 5003128860000000

= 5312097082749300
