21204058 ÷ 275 
We want to figure out the number of times 21204058 can be divided by 275.

Let's proceed to step 1:
275 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Include the next digit (1) from the dividend after 2, then repeat: 21 / 275

Moving on to step 2:
When dividing 21 by 275, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 21 after subtracting 0 from 21.
Bring next digit (2) of the dividend behind the 21 and repeat the process: 212 / 275

Advancing to step 3:
The number 275 fits into 212 0 times, leaving a remainder of 212.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 212 to get 212.
Fetch the next digit (0) from the dividend, attach it to 212 and continue: 2120 / 275

Let's proceed to step 4:
If we divide 2120 by 275, we get 7 and a remainder of 195.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we subtract 1925 from 2120, we get 195.
Include the next digit (4) from the dividend after 195, then repeat: 1954 / 275

Going ahead to step 5:
275 goes into 1954 7 times with a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 77.0
Subtract 1925 from 1954 to get 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 275

Moving on to step 6:
The number 275 fits into 290 1 times, leaving a remainder of 15.
The number 1 becomes the next digit in our result. 
Result so far: 771.0
Deduct 275 from 290 and we're left with 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 275

Going ahead to step 7:
155 divided by 275 is 0 with a remainder of 155.
Record the quotient 0 as the next digit in the result. 
Result so far: 7710.0
Subtracting 0 from 155 leaves us with 155.
Append the next digit (8) from the dividend to 155 and continue with: 1558 / 275

On to step 8:
275 goes into 1558 5 times with a remainder of 183.
Write down 5 as next digit of the result. 
Result so far: 77105.0
Subtract 1375 from 1558 to get 183.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1830, and continue the process.

On to step 9:
When dividing 1830 by 275, we get 6 with a remainder of 180.
The number 6 becomes the next digit in our result. 
Result so far: 77105.6
If we take 1650 away from 1830, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
275 can be fit into 1800 6 times, resulting in a remainder of 150.
Write down 6 as next digit of the result. 
Result so far: 77105.66
If we take 1650 away from 1800, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Our division results in 77105.66 with a remaining 0.15.