21278698 ÷ 526 
Let's see how many times 526 fits into 21278698.

Let's proceed to step 1:
2 divided by 526 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 526

Going ahead to step 2:
When dividing 21 by 526, we get 0 with a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 526

Let's proceed to step 3:
If we divide 212 by 526, we get 0 and a remainder of 212.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 212 after subtracting 0 from 212.
Bring next digit (7) of the dividend behind the 212 and repeat the process: 2127 / 526

Step 4:
526 can be fit into 2127 4 times, resulting in a remainder of 23.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtract 2104 from 2127 to get 23.
Grab the next digit (8) from the dividend, add it to 23, then carry on: 238 / 526

Going ahead to step 5:
526 can be fit into 238 0 times, resulting in a remainder of 238.
Write down 0 as next digit of the result. 
Result so far: 40.0
The remainder is 238 after subtracting 0 from 238.
Take the next digit (6) from the dividend and append it to 238, then repeat: 2386 / 526

Step 6:
526 can be fit into 2386 4 times, resulting in a remainder of 282.
Put 4 as the next digit of the answer. 
Result so far: 404.0
Deduct 2104 from 2386 and we're left with 282.
Take the next digit (9) from the dividend and append it to 282, then repeat: 2829 / 526

Let's proceed to step 7:
2829 divided by 526 is 5 with a remainder of 199.
Write down 5 as next digit of the result. 
Result so far: 4045.0
Deduct 2630 from 2829 and we're left with 199.
Fetch the next digit (8) from the dividend, attach it to 199 and continue: 1998 / 526

Let's proceed to step 8:
When dividing 1998 by 526, we get 3 with a remainder of 420.
Record the quotient 3 as the next digit in the result. 
Result so far: 40453.0
If we subtract 1578 from 1998, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 9:
526 goes into 4200 7 times with a remainder of 518.
Put 7 as the next digit of the answer. 
Result so far: 40453.7
Subtract 3682 from 4200 to get 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Moving on to step 10:
The number 526 fits into 5180 9 times, leaving a remainder of 446.
Write down 9 as next digit of the result. 
Result so far: 40453.79
If we subtract 4734 from 5180, we get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Advancing to step 11:
4460 divided by 526 is 8 with a remainder of 252.
The number 8 becomes the next digit in our result. 
Result so far: 40453.798
Deduct 4208 from 4460 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

On to step 12:
2520 divided by 526 is 4 with a remainder of 416.
The next digit of our result is 4. 
Result so far: 40453.7984
Deduct 2104 from 2520 and we're left with 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

On to step 13:
The number 526 fits into 4160 7 times, leaving a remainder of 478.
The number 7 becomes the next digit in our result. 
Result so far: 40453.79847
Deduct 3682 from 4160 and we're left with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Advancing to step 14:
If we divide 4780 by 526, we get 9 and a remainder of 46.
The number 9 becomes the next digit in our result. 
Result so far: 40453.798479
Subtract 4734 from 4780 to get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 15:
When dividing 460 by 526, we get 0 with a remainder of 460.
Put 0 as the next digit of the answer. 
Result so far: 40453.798479
Subtract 0 from 460 to get 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

Let's proceed to step 16:
If we divide 4600 by 526, we get 8 and a remainder of 392.
Put 8 as the next digit of the answer. 
Result so far: 40453.79847908
If we take 4208 away from 4600, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

The final result is 40453.79847908 with a remainder of 3.92e-07.