Alright, let's work through 89016779 times 21253048 step by step
89016779 × 21253048 = 21253048 × (89016779)
+ 21253048 × 9 that equals 191277432
+ 21253048 × 70 that results in 1487713360
+ 21253048 × 700 yielding 14877133600
+ 21253048 × 6000 that results in 127518288000
+ 21253048 × 10000 producing 212530480000
+ 21253048 × 000000 what gives us 0
+ 21253048 × 9000000 that results in 191277432000000
+ 21253048 × 80000000 that equals 1700243840000000

= 1891877876892392
