21684885 ÷ 75 
We want to figure out the number of times 21684885 can be divided by 75.

Going ahead to step 1:
When dividing 2 by 75, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 75

Advancing to step 2:
21 divided by 75 is 0 with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (6) from the dividend after 21, then repeat: 216 / 75

Step 3:
The number 75 fits into 216 2 times, leaving a remainder of 66.
Use 2 as the next digit of our solution. 
Result so far: 2.0
If we subtract 150 from 216, we get 66.
Take the next digit (8) from the dividend and append it to 66, then repeat: 668 / 75

On to step 4:
If we divide 668 by 75, we get 8 and a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 28.0
If we subtract 600 from 668, we get 68.
Fetch the next digit (4) from the dividend, attach it to 68 and continue: 684 / 75

Let's proceed to step 5:
The number 75 fits into 684 9 times, leaving a remainder of 9.
Write down 9 as next digit of the result. 
Result so far: 289.0
If we subtract 675 from 684, we get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 75

Advancing to step 6:
The number 75 fits into 98 1 times, leaving a remainder of 23.
Record the quotient 1 as the next digit in the result. 
Result so far: 2891.0
If we subtract 75 from 98, we get 23.
Append the next digit (8) from the dividend to 23 and continue with: 238 / 75

Step 7:
238 divided by 75 is 3 with a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 28913.0
Subtracting 225 from 238 leaves us with 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 75

Step 8:
The number 75 fits into 135 1 times, leaving a remainder of 60.
Put 1 as the next digit of the answer. 
Result so far: 289131.0
The remainder is 60 after subtracting 75 from 135.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

On to step 9:
75 can be fit into 600 8 times, resulting in a remainder of 0.
Use 8 as the next digit of our solution. 
Result so far: 289131.8
Subtract 600 from 600 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 10:
When dividing 0 by 75, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 289131.8
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 11:
75 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 289131.8
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 289131.8 with a remaining 0.0.