Alright, let's work through 91217344 times 51571632 step by step
91217344 × 51571632 = 51571632 × (91217344)
+ 51571632 × 4 which equals 206286528
+ 51571632 × 40 that is equal 2062865280
+ 51571632 × 300 which equals 15471489600
+ 51571632 × 7000 that results in 361001424000
+ 51571632 × 10000 what gives us 515716320000
+ 51571632 × 200000 what gives us 10314326400000
+ 51571632 × 1000000 that is equal 51571632000000
+ 51571632 × 90000000 that results in 4641446880000000

= 4704227296785408
