Alright, let's work through 84260941 times 45237884 step by step
84260941 × 45237884 = 45237884 × (84260941)
+ 45237884 × 1 resulting in 45237884
+ 45237884 × 40 what gives us 1809515360
+ 45237884 × 900 resulting in 40714095600
+ 45237884 × 0000 resulting in 0
+ 45237884 × 60000 resulting in 2714273040000
+ 45237884 × 200000 that is equal 9047576800000
+ 45237884 × 4000000 resulting in 180951536000000
+ 45237884 × 80000000 yielding 3619030720000000

= 3811786674688844
