Let's divide 20518582 by 801
We want to divide 20518582 by 801.

Moving on to step 1:
2 divided by 801 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 801

Advancing to step 2:
The number 801 fits into 20 0 times, leaving a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 20 to get 20.
Take the next digit (5) from the dividend and append it to 20, then repeat: 205 / 801

Advancing to step 3:
801 can be fit into 205 0 times, resulting in a remainder of 205.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 205 and we're left with 205.
Include the next digit (1) from the dividend after 205, then repeat: 2051 / 801

Advancing to step 4:
When dividing 2051 by 801, we get 2 with a remainder of 449.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 1602 from 2051 to get 449.
Bring next digit (8) of the dividend behind the 449 and repeat the process: 4498 / 801

On to step 5:
801 can be fit into 4498 5 times, resulting in a remainder of 493.
The number 5 becomes the next digit in our result. 
Result so far: 25.0
Subtract 4005 from 4498 to get 493.
Include the next digit (5) from the dividend after 493, then repeat: 4935 / 801

Advancing to step 6:
801 can be fit into 4935 6 times, resulting in a remainder of 129.
Write down 6 as next digit of the result. 
Result so far: 256.0
Deduct 4806 from 4935 and we're left with 129.
Bring next digit (8) of the dividend behind the 129 and repeat the process: 1298 / 801

Let's proceed to step 7:
801 goes into 1298 1 times with a remainder of 497.
Record the quotient 1 as the next digit in the result. 
Result so far: 2561.0
The remainder is 497 after subtracting 801 from 1298.
Append the next digit (2) from the dividend to 497 and continue with: 4972 / 801

Advancing to step 8:
The number 801 fits into 4972 6 times, leaving a remainder of 166.
Use 6 as the next digit of our solution. 
Result so far: 25616.0
If we subtract 4806 from 4972, we get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

On to step 9:
If we divide 1660 by 801, we get 2 and a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 25616.2
If we take 1602 away from 1660, we end up with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 10:
The number 801 fits into 580 0 times, leaving a remainder of 580.
The number 0 becomes the next digit in our result. 
Result so far: 25616.2
Deduct 0 from 580 and we're left with 580.
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 801, we get 7 with a remainder of 193.
Record the quotient 7 as the next digit in the result. 
Result so far: 25616.207
If we subtract 5607 from 5800, we get 193.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1930, and continue the process.

Going ahead to step 12:
801 can be fit into 1930 2 times, resulting in a remainder of 328.
Use 2 as the next digit of our solution. 
Result so far: 25616.2072
Subtracting 1602 from 1930 leaves us with 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Step 13:
The number 801 fits into 3280 4 times, leaving a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 25616.20724
Deduct 3204 from 3280 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 14:
If we divide 760 by 801, we get 0 and a remainder of 760.
The next digit of our result is 0. 
Result so far: 25616.20724
Deduct 0 from 760 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.

Step 15:
If we divide 7600 by 801, we get 9 and a remainder of 391.
The next digit of our result is 9. 
Result so far: 25616.2072409
If we subtract 7209 from 7600, we get 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Going ahead to step 16:
801 can be fit into 3910 4 times, resulting in a remainder of 706.
The next digit of our result is 4. 
Result so far: 25616.20724094
The remainder is 706 after subtracting 3204 from 3910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7060, and continue the process.

The final result is 25616.20724094 with a remainder of 7.06e-07.