Alright, let's work through 20470040 times 73610723 step by step
20470040 × 73610723 = 73610723 × (20470040)
+ 73610723 × 0 that results in 0
+ 73610723 × 40 giving us 2944428920
+ 73610723 × 000 yielding 0
+ 73610723 × 0000 giving us 0
+ 73610723 × 70000 that results in 5152750610000
+ 73610723 × 400000 that is equal 29444289200000
+ 73610723 × 0000000 resulting in 0
+ 73610723 × 20000000 yielding 1472214460000000

= 1506814444238920
