Alright, let's work through 20463143 times 46785849 step by step
20463143 × 46785849 = 46785849 × (20463143)
+ 46785849 × 3 that is equal 140357547
+ 46785849 × 40 what gives us 1871433960
+ 46785849 × 100 that equals 4678584900
+ 46785849 × 3000 what gives us 140357547000
+ 46785849 × 60000 which equals 2807150940000
+ 46785849 × 400000 giving us 18714339600000
+ 46785849 × 0000000 producing 0
+ 46785849 × 20000000 yielding 935716980000000

= 957385518463407
