Alright, let's work through 54193199 times 96823543 step by step
54193199 × 96823543 = 96823543 × (54193199)
+ 96823543 × 9 that is equal 871411887
+ 96823543 × 90 that equals 8714118870
+ 96823543 × 100 that is equal 9682354300
+ 96823543 × 3000 that results in 290470629000
+ 96823543 × 90000 what gives us 8714118870000
+ 96823543 × 100000 that equals 9682354300000
+ 96823543 × 4000000 that equals 387294172000000
+ 96823543 × 50000000 resulting in 4841177150000000

= 5247177533684057
