We divide 25997026 by 21
We're looking to find how many times 21 goes into 25997026.

Step 1:
21 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 21

On to step 2:
When dividing 25 by 21, we get 1 with a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtracting 21 from 25 leaves us with 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 21

Let's proceed to step 3:
When dividing 49 by 21, we get 2 with a remainder of 7.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 42 from 49, we get 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 21

Let's proceed to step 4:
If we divide 79 by 21, we get 3 and a remainder of 16.
Put 3 as the next digit of the answer. 
Result so far: 123.0
Deduct 63 from 79 and we're left with 16.
Fetch the next digit (7) from the dividend, attach it to 16 and continue: 167 / 21

On to step 5:
167 divided by 21 is 7 with a remainder of 20.
Use 7 as the next digit of our solution. 
Result so far: 1237.0
If we take 147 away from 167, we end up with 20.
Fetch the next digit (0) from the dividend, attach it to 20 and continue: 200 / 21

Advancing to step 6:
If we divide 200 by 21, we get 9 and a remainder of 11.
Record the quotient 9 as the next digit in the result. 
Result so far: 12379.0
The remainder is 11 after subtracting 189 from 200.
Append the next digit (2) from the dividend to 11 and continue with: 112 / 21

Moving on to step 7:
The number 21 fits into 112 5 times, leaving a remainder of 7.
Use 5 as the next digit of our solution. 
Result so far: 123795.0
The remainder is 7 after subtracting 105 from 112.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 21

Moving on to step 8:
21 can be fit into 76 3 times, resulting in a remainder of 13.
Write down 3 as next digit of the result. 
Result so far: 1237953.0
The remainder is 13 after subtracting 63 from 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
21 can be fit into 130 6 times, resulting in a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 1237953.6
If we subtract 126 from 130, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 10:
21 goes into 40 1 times with a remainder of 19.
The number 1 becomes the next digit in our result. 
Result so far: 1237953.61
If we subtract 21 from 40, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 11:
21 can be fit into 190 9 times, resulting in a remainder of 1.
The next digit of our result is 9. 
Result so far: 1237953.619
If we subtract 189 from 190, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 12:
21 can be fit into 10 0 times, resulting in a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 1237953.619
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
If we divide 100 by 21, we get 4 and a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 1237953.61904
Deduct 84 from 100 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
21 can be fit into 160 7 times, resulting in a remainder of 13.
Put 7 as the next digit of the answer. 
Result so far: 1237953.619047
If we take 147 away from 160, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 15:
If we divide 130 by 21, we get 6 and a remainder of 4.
Use 6 as the next digit of our solution. 
Result so far: 1237953.6190476
The remainder is 4 after subtracting 126 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 16:
The number 21 fits into 40 1 times, leaving a remainder of 19.
The next digit of our result is 1. 
Result so far: 1237953.61904761
Deduct 21 from 40 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

The quotient of the division is 1237953.61904761, and the remainder is 1.9e-08.