The product of two numbers is $56088.$If one number is $123$, what is the other number $?$

Observe the pattern :

$$\begin{gathered} 1\times 1=1 \\ 11\times 11 =121 \\ 111\times 111 =12321 \\ 1111\times 1111 =\mathrm{\_\_\_\_\_\_\_\_} \\ 11111\times 11111=\mathrm{\_\_\_\_\_\_\_\_} \end{gathered}$$

Observe the pattern and extend it to four more steps:

$$\begin{gathered} \left(7\times 2\right) -3 =11 \\ \left(7\times 3\right) -6 =15 \\ \left(7\times 4\right) -9 =19 \\ \left(7\times 5\right) -12 =23 \\ .......... .... ....... \\ .......... .... ....... \\ .......... .... ....... \\ .......... .... ....... \end{gathered}$$

Observe the following pattern:

$$\begin{gathered} 8\times 1+1=9 \\ 8\times 3+1=25 \\ 8\times 6+1=49 \\ 8\times 10+1=81 \end{gathered}$$

write three more steps.

Observe the following pattern:

$$\begin{gathered} 1\times 8+1=9 \\ 12\times 8+2=98 \\ 123\times 8+3=987 \end{gathered}$$

write two more steps.

Divide and check the answer.

$6290÷34$