Alright, let's work through 90078401 times 13602470 step by step
90078401 × 13602470 = 13602470 × (90078401)
+ 13602470 × 1 giving us 13602470
+ 13602470 × 00 resulting in 0
+ 13602470 × 400 that is equal 5440988000
+ 13602470 × 8000 that equals 108819760000
+ 13602470 × 70000 that is equal 952172900000
+ 13602470 × 000000 that is equal 0
+ 13602470 × 0000000 which equals 0
+ 13602470 × 90000000 that equals 1224222300000000

= 1225288747250470
