Alright, let's work through 55662479 times 73393641 step by step
55662479 × 73393641 = 73393641 × (55662479)
+ 73393641 × 9 resulting in 660542769
+ 73393641 × 70 that is equal 5137554870
+ 73393641 × 400 that equals 29357456400
+ 73393641 × 2000 which equals 146787282000
+ 73393641 × 60000 which equals 4403618460000
+ 73393641 × 600000 producing 44036184600000
+ 73393641 × 5000000 that is equal 366968205000000
+ 73393641 × 50000000 yielding 3669682050000000

= 4085272000896039
