71146073 ÷ 869 
The aim is to understand the frequency of 869 in 71146073.

Let's proceed to step 1:
7 divided by 869 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 869

Moving on to step 2:
If we divide 71 by 869, we get 0 and a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 71, we end up with 71.
Fetch the next digit (1) from the dividend, attach it to 71 and continue: 711 / 869

Advancing to step 3:
The number 869 fits into 711 0 times, leaving a remainder of 711.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 711, we get 711.
Bring next digit (4) of the dividend behind the 711 and repeat the process: 7114 / 869

Let's proceed to step 4:
If we divide 7114 by 869, we get 8 and a remainder of 162.
The next digit of our result is 8. 
Result so far: 8.0
If we take 6952 away from 7114, we end up with 162.
Append the next digit (6) from the dividend to 162 and continue with: 1626 / 869

On to step 5:
869 goes into 1626 1 times with a remainder of 757.
Use 1 as the next digit of our solution. 
Result so far: 81.0
Subtract 869 from 1626 to get 757.
Include the next digit (0) from the dividend after 757, then repeat: 7570 / 869

Let's proceed to step 6:
869 goes into 7570 8 times with a remainder of 618.
Put 8 as the next digit of the answer. 
Result so far: 818.0
The remainder is 618 after subtracting 6952 from 7570.
Include the next digit (7) from the dividend after 618, then repeat: 6187 / 869

Moving on to step 7:
6187 divided by 869 is 7 with a remainder of 104.
Record the quotient 7 as the next digit in the result. 
Result so far: 8187.0
The remainder is 104 after subtracting 6083 from 6187.
Fetch the next digit (3) from the dividend, attach it to 104 and continue: 1043 / 869

Moving on to step 8:
If we divide 1043 by 869, we get 1 and a remainder of 174.
Use 1 as the next digit of our solution. 
Result so far: 81871.0
Subtracting 869 from 1043 leaves us with 174.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1740, and continue the process.

On to step 9:
1740 divided by 869 is 2 with a remainder of 2.
The next digit of our result is 2. 
Result so far: 81871.2
If we subtract 1738 from 1740, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
869 can be fit into 20 0 times, resulting in a remainder of 20.
The next digit of our result is 0. 
Result so far: 81871.2
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 11:
If we divide 200 by 869, we get 0 and a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 81871.2
Subtracting 0 from 200 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The quotient of the division is 81871.2, and the remainder is 0.02.