Alright, let's work through 54147621 times 87693723 step by step
54147621 × 87693723 = 87693723 × (54147621)
+ 87693723 × 1 that results in 87693723
+ 87693723 × 20 giving us 1753874460
+ 87693723 × 600 that equals 52616233800
+ 87693723 × 7000 that results in 613856061000
+ 87693723 × 40000 producing 3507748920000
+ 87693723 × 100000 giving us 8769372300000
+ 87693723 × 4000000 that results in 350774892000000
+ 87693723 × 50000000 that is equal 4384686150000000

= 4748406477082983
