Alright, let's work through 90740445 times 15675356 step by step
90740445 × 15675356 = 15675356 × (90740445)
+ 15675356 × 5 yielding 78376780
+ 15675356 × 40 giving us 627014240
+ 15675356 × 400 yielding 6270142400
+ 15675356 × 0000 that is equal 0
+ 15675356 × 40000 what gives us 627014240000
+ 15675356 × 700000 that results in 10972749200000
+ 15675356 × 0000000 which equals 0
+ 15675356 × 90000000 producing 1410782040000000

= 1422388778973420
