Alright, let's work through 21971424 times 88193501 step by step
21971424 × 88193501 = 88193501 × (21971424)
+ 88193501 × 4 that equals 352774004
+ 88193501 × 20 resulting in 1763870020
+ 88193501 × 400 that results in 35277400400
+ 88193501 × 1000 that is equal 88193501000
+ 88193501 × 70000 yielding 6173545070000
+ 88193501 × 900000 giving us 79374150900000
+ 88193501 × 1000000 resulting in 88193501000000
+ 88193501 × 20000000 what gives us 1763870020000000

= 1937736804515424
