Alright, let's work through 47444547 times 81748720 step by step
47444547 × 81748720 = 81748720 × (47444547)
+ 81748720 × 7 yielding 572241040
+ 81748720 × 40 that equals 3269948800
+ 81748720 × 500 producing 40874360000
+ 81748720 × 4000 resulting in 326994880000
+ 81748720 × 40000 giving us 3269948800000
+ 81748720 × 400000 resulting in 32699488000000
+ 81748720 × 7000000 giving us 572241040000000
+ 81748720 × 40000000 giving us 3269948800000000

= 3878530988229840
