Let's divide 275658 by 21
We want to figure out the number of times 275658 can be divided by 21.

Step 1:
21 can be fit into 2 0 times, resulting in a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (7) from the dividend and append it to 2, then repeat: 27 / 21

Step 2:
When dividing 27 by 21, we get 1 with a remainder of 6.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 6 after subtracting 21 from 27.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 21

Advancing to step 3:
If we divide 65 by 21, we get 3 and a remainder of 2.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Deduct 63 from 65 and we're left with 2.
Append the next digit (6) from the dividend to 2 and continue with: 26 / 21

Going ahead to step 4:
The number 21 fits into 26 1 times, leaving a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 131.0
Subtract 21 from 26 to get 5.
Include the next digit (5) from the dividend after 5, then repeat: 55 / 21

Step 5:
55 divided by 21 is 2 with a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 1312.0
Deduct 42 from 55 and we're left with 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 21

On to step 6:
When dividing 138 by 21, we get 6 with a remainder of 12.
The next digit of our result is 6. 
Result so far: 13126.0
Subtract 126 from 138 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 7:
The number 21 fits into 120 5 times, leaving a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 13126.5
The remainder is 15 after subtracting 105 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 8:
If we divide 150 by 21, we get 7 and a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 13126.57
Deduct 147 from 150 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 9:
When dividing 30 by 21, we get 1 with a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 13126.571
If we subtract 21 from 30, we get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 10:
When dividing 90 by 21, we get 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 13126.5714
Subtracting 84 from 90 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 11:
The number 21 fits into 60 2 times, leaving a remainder of 18.
Record the quotient 2 as the next digit in the result. 
Result so far: 13126.57142
The remainder is 18 after subtracting 42 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 12:
21 goes into 180 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 13126.571428
The remainder is 12 after subtracting 168 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 13:
When dividing 120 by 21, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 13126.5714285
If we take 105 away from 120, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 14:
When dividing 150 by 21, we get 7 with a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 13126.57142857
Subtract 147 from 150 to get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

In conclusion, the division gives 13126.57142857 with a balance of 3e-09.