Alright, let's work through 75953877 times 90021742 step by step
75953877 × 90021742 = 90021742 × (75953877)
+ 90021742 × 7 what gives us 630152194
+ 90021742 × 70 what gives us 6301521940
+ 90021742 × 800 giving us 72017393600
+ 90021742 × 3000 that results in 270065226000
+ 90021742 × 50000 giving us 4501087100000
+ 90021742 × 900000 producing 81019567800000
+ 90021742 × 5000000 resulting in 450108710000000
+ 90021742 × 70000000 which equals 6301521940000000

= 6837500319193734
