Use n as the unknown number to solve:
n ÷ 2010 = 2.01020102010210
*2010 *2010 --Times both sides by 2010
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n= 4040.504050405221
Let's check it:
4040.504050405221 ÷ 2010 = 2.01020102010210
2.0102010201021 ~= 2.01020102010210 ✔