$$4 \times 12+10 \times 151/6.023 \times 10^{ 23 }$$
$\frac{151000000000000000000000289104}{6023}\approx 2.507056284 \cdot 10^{25}$
$$48+\frac{10\times 151}{6.023}\times 10^{23}$$
$$48+\frac{1510}{6.023}\times 10^{23}$$
$$48+\frac{1510000}{6023}\times 10^{23}$$
$$48+\frac{1510000}{6023}\times 100000000000000000000000$$
$$48+\frac{1510000\times 100000000000000000000000}{6023}$$
$$48+\frac{151000000000000000000000000000}{6023}$$
$$\frac{289104}{6023}+\frac{151000000000000000000000000000}{6023}$$
$$\frac{289104+151000000000000000000000000000}{6023}$$
$$\frac{151000000000000000000000289104}{6023}$$
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