Let's divide 21072270 by 807
We want to divide 21072270 by 807.

Advancing to step 1:
807 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 807

On to step 2:
The number 807 fits into 21 0 times, leaving a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Bring next digit (0) of the dividend behind the 21 and repeat the process: 210 / 807

Going ahead to step 3:
807 can be fit into 210 0 times, resulting in a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 210 leaves us with 210.
Append the next digit (7) from the dividend to 210 and continue with: 2107 / 807

Moving on to step 4:
807 can be fit into 2107 2 times, resulting in a remainder of 493.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 493 after subtracting 1614 from 2107.
Grab the next digit (2) from the dividend, add it to 493, then carry on: 4932 / 807

Going ahead to step 5:
The number 807 fits into 4932 6 times, leaving a remainder of 90.
The next digit of our result is 6. 
Result so far: 26.0
Deduct 4842 from 4932 and we're left with 90.
Bring next digit (2) of the dividend behind the 90 and repeat the process: 902 / 807

Step 6:
807 goes into 902 1 times with a remainder of 95.
Use 1 as the next digit of our solution. 
Result so far: 261.0
Subtracting 807 from 902 leaves us with 95.
Take the next digit (7) from the dividend and append it to 95, then repeat: 957 / 807

Step 7:
When dividing 957 by 807, we get 1 with a remainder of 150.
Use 1 as the next digit of our solution. 
Result so far: 2611.0
Subtract 807 from 957 to get 150.
Grab the next digit (0) from the dividend, add it to 150, then carry on: 1500 / 807

Going ahead to step 8:
1500 divided by 807 is 1 with a remainder of 693.
The next digit of our result is 1. 
Result so far: 26111.0
Deduct 807 from 1500 and we're left with 693.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6930, and continue the process.

Step 9:
807 goes into 6930 8 times with a remainder of 474.
The next digit of our result is 8. 
Result so far: 26111.8
Deduct 6456 from 6930 and we're left with 474.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4740, and continue the process.

Step 10:
807 goes into 4740 5 times with a remainder of 705.
Write down 5 as next digit of the result. 
Result so far: 26111.85
The remainder is 705 after subtracting 4035 from 4740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7050, and continue the process.

Going ahead to step 11:
807 goes into 7050 8 times with a remainder of 594.
Record the quotient 8 as the next digit in the result. 
Result so far: 26111.858
Deduct 6456 from 7050 and we're left with 594.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5940, and continue the process.

Advancing to step 12:
If we divide 5940 by 807, we get 7 and a remainder of 291.
Put 7 as the next digit of the answer. 
Result so far: 26111.8587
If we subtract 5649 from 5940, we get 291.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2910, and continue the process.

Going ahead to step 13:
If we divide 2910 by 807, we get 3 and a remainder of 489.
Record the quotient 3 as the next digit in the result. 
Result so far: 26111.85873
Subtract 2421 from 2910 to get 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Going ahead to step 14:
807 can be fit into 4890 6 times, resulting in a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 26111.858736
Subtract 4842 from 4890 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 15:
807 can be fit into 480 0 times, resulting in a remainder of 480.
Write down 0 as next digit of the result. 
Result so far: 26111.858736
Subtract 0 from 480 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 16:
If we divide 4800 by 807, we get 5 and a remainder of 765.
Write down 5 as next digit of the result. 
Result so far: 26111.85873605
If we take 4035 away from 4800, we end up with 765.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7650, and continue the process.

The final result is 26111.85873605 with a remainder of 7.65e-07.