Alright, let's work through 55456620 times 75606389 step by step
55456620 × 75606389 = 75606389 × (55456620)
+ 75606389 × 0 resulting in 0
+ 75606389 × 20 what gives us 1512127780
+ 75606389 × 600 giving us 45363833400
+ 75606389 × 6000 that results in 453638334000
+ 75606389 × 50000 yielding 3780319450000
+ 75606389 × 400000 yielding 30242555600000
+ 75606389 × 5000000 yielding 378031945000000
+ 75606389 × 50000000 what gives us 3780319450000000

= 4192874784345180
