Alright, let's work through 54970211 times 98520812 step by step
54970211 × 98520812 = 98520812 × (54970211)
+ 98520812 × 1 that equals 98520812
+ 98520812 × 10 that results in 985208120
+ 98520812 × 200 that is equal 19704162400
+ 98520812 × 0000 that is equal 0
+ 98520812 × 70000 that equals 6896456840000
+ 98520812 × 900000 giving us 88668730800000
+ 98520812 × 4000000 giving us 394083248000000
+ 98520812 × 50000000 that equals 4926040600000000

= 5415709823531332
