22159921 ÷ 810 
We want to divide 22159921 by 810.

On to step 1:
2 divided by 810 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 810

On to step 2:
810 goes into 22 0 times with a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 22, we end up with 22.
Include the next digit (1) from the dividend after 22, then repeat: 221 / 810

Advancing to step 3:
If we divide 221 by 810, we get 0 and a remainder of 221.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 221 leaves us with 221.
Fetch the next digit (5) from the dividend, attach it to 221 and continue: 2215 / 810

Going ahead to step 4:
When dividing 2215 by 810, we get 2 with a remainder of 595.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we subtract 1620 from 2215, we get 595.
Grab the next digit (9) from the dividend, add it to 595, then carry on: 5959 / 810

Advancing to step 5:
5959 divided by 810 is 7 with a remainder of 289.
Record the quotient 7 as the next digit in the result. 
Result so far: 27.0
Deduct 5670 from 5959 and we're left with 289.
Take the next digit (9) from the dividend and append it to 289, then repeat: 2899 / 810

Moving on to step 6:
810 can be fit into 2899 3 times, resulting in a remainder of 469.
Use 3 as the next digit of our solution. 
Result so far: 273.0
If we subtract 2430 from 2899, we get 469.
Fetch the next digit (2) from the dividend, attach it to 469 and continue: 4692 / 810

Going ahead to step 7:
When dividing 4692 by 810, we get 5 with a remainder of 642.
Put 5 as the next digit of the answer. 
Result so far: 2735.0
Deduct 4050 from 4692 and we're left with 642.
Bring next digit (1) of the dividend behind the 642 and repeat the process: 6421 / 810

Let's proceed to step 8:
If we divide 6421 by 810, we get 7 and a remainder of 751.
Put 7 as the next digit of the answer. 
Result so far: 27357.0
If we take 5670 away from 6421, we end up with 751.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7510, and continue the process.

Let's proceed to step 9:
When dividing 7510 by 810, we get 9 with a remainder of 220.
Write down 9 as next digit of the result. 
Result so far: 27357.9
If we take 7290 away from 7510, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Step 10:
2200 divided by 810 is 2 with a remainder of 580.
Write down 2 as next digit of the result. 
Result so far: 27357.92
The remainder is 580 after subtracting 1620 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Let's proceed to step 11:
When dividing 5800 by 810, we get 7 with a remainder of 130.
Write down 7 as next digit of the result. 
Result so far: 27357.927
The remainder is 130 after subtracting 5670 from 5800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 12:
When dividing 1300 by 810, we get 1 with a remainder of 490.
The number 1 becomes the next digit in our result. 
Result so far: 27357.9271
If we subtract 810 from 1300, we get 490.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4900, and continue the process.

Advancing to step 13:
The number 810 fits into 4900 6 times, leaving a remainder of 40.
Use 6 as the next digit of our solution. 
Result so far: 27357.92716
Subtract 4860 from 4900 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Let's proceed to step 14:
If we divide 400 by 810, we get 0 and a remainder of 400.
The next digit of our result is 0. 
Result so far: 27357.92716
Deduct 0 from 400 and we're left with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Advancing to step 15:
If we divide 4000 by 810, we get 4 and a remainder of 760.
Use 4 as the next digit of our solution. 
Result so far: 27357.9271604
Deduct 3240 from 4000 and we're left with 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7600, and continue the process.

Moving on to step 16:
If we divide 7600 by 810, we get 9 and a remainder of 310.
The next digit of our result is 9. 
Result so far: 27357.92716049
The remainder is 310 after subtracting 7290 from 7600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Our division results in 27357.92716049 with a remaining 3.1e-07.