Alright, let's work through 19664570 times 35036789 step by step
19664570 × 35036789 = 35036789 × (19664570)
+ 35036789 × 0 that is equal 0
+ 35036789 × 70 that is equal 2452575230
+ 35036789 × 500 resulting in 17518394500
+ 35036789 × 4000 resulting in 140147156000
+ 35036789 × 60000 giving us 2102207340000
+ 35036789 × 600000 that results in 21022073400000
+ 35036789 × 9000000 that results in 315331101000000
+ 35036789 × 10000000 producing 350367890000000

= 688983389865730
