We divide 16221452 by 869
Let's see how many times 869 fits into 16221452.

Advancing to step 1:
The number 869 fits into 1 0 times, leaving a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (6) from the dividend, add it to 1, then carry on: 16 / 869

Moving on to step 2:
16 divided by 869 is 0 with a remainder of 16.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 16, we get 16.
Include the next digit (2) from the dividend after 16, then repeat: 162 / 869

Advancing to step 3:
869 can be fit into 162 0 times, resulting in a remainder of 162.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 162 and we're left with 162.
Bring next digit (2) of the dividend behind the 162 and repeat the process: 1622 / 869

Moving on to step 4:
When dividing 1622 by 869, we get 1 with a remainder of 753.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 869 away from 1622, we end up with 753.
Append the next digit (1) from the dividend to 753 and continue with: 7531 / 869

Let's proceed to step 5:
869 can be fit into 7531 8 times, resulting in a remainder of 579.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
Subtracting 6952 from 7531 leaves us with 579.
Append the next digit (4) from the dividend to 579 and continue with: 5794 / 869

Let's proceed to step 6:
5794 divided by 869 is 6 with a remainder of 580.
The number 6 becomes the next digit in our result. 
Result so far: 186.0
Subtracting 5214 from 5794 leaves us with 580.
Append the next digit (5) from the dividend to 580 and continue with: 5805 / 869

Moving on to step 7:
869 goes into 5805 6 times with a remainder of 591.
Record the quotient 6 as the next digit in the result. 
Result so far: 1866.0
The remainder is 591 after subtracting 5214 from 5805.
Include the next digit (2) from the dividend after 591, then repeat: 5912 / 869

Going ahead to step 8:
If we divide 5912 by 869, we get 6 and a remainder of 698.
Put 6 as the next digit of the answer. 
Result so far: 18666.0
Subtracting 5214 from 5912 leaves us with 698.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6980, and continue the process.

Going ahead to step 9:
The number 869 fits into 6980 8 times, leaving a remainder of 28.
The number 8 becomes the next digit in our result. 
Result so far: 18666.8
Subtract 6952 from 6980 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 10:
869 can be fit into 280 0 times, resulting in a remainder of 280.
The next digit of our result is 0. 
Result so far: 18666.8
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 11:
If we divide 2800 by 869, we get 3 and a remainder of 193.
Write down 3 as next digit of the result. 
Result so far: 18666.803
Subtracting 2607 from 2800 leaves us with 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Going ahead to step 12:
1930 divided by 869 is 2 with a remainder of 192.
Write down 2 as next digit of the result. 
Result so far: 18666.8032
If we take 1738 away from 1930, we end up with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 13:
If we divide 1920 by 869, we get 2 and a remainder of 182.
Write down 2 as next digit of the result. 
Result so far: 18666.80322
The remainder is 182 after subtracting 1738 from 1920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

The final result is 18666.80322 with a remainder of 0.000182.