Let's divide 20690890 by 855
Our goal is to divide 20690890 by 855.

Moving on to step 1:
2 divided by 855 is 0 with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 855

Moving on to step 2:
When dividing 20 by 855, we get 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 20 and we're left with 20.
Include the next digit (6) from the dividend after 20, then repeat: 206 / 855

Going ahead to step 3:
855 goes into 206 0 times with a remainder of 206.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 206 after subtracting 0 from 206.
Append the next digit (9) from the dividend to 206 and continue with: 2069 / 855

Step 4:
When dividing 2069 by 855, we get 2 with a remainder of 359.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 359 after subtracting 1710 from 2069.
Include the next digit (0) from the dividend after 359, then repeat: 3590 / 855

Going ahead to step 5:
855 goes into 3590 4 times with a remainder of 170.
The next digit of our result is 4. 
Result so far: 24.0
Deduct 3420 from 3590 and we're left with 170.
Grab the next digit (8) from the dividend, add it to 170, then carry on: 1708 / 855

Moving on to step 6:
When dividing 1708 by 855, we get 1 with a remainder of 853.
The number 1 becomes the next digit in our result. 
Result so far: 241.0
If we subtract 855 from 1708, we get 853.
Grab the next digit (9) from the dividend, add it to 853, then carry on: 8539 / 855

Moving on to step 7:
The number 855 fits into 8539 9 times, leaving a remainder of 844.
Record the quotient 9 as the next digit in the result. 
Result so far: 2419.0
Subtracting 7695 from 8539 leaves us with 844.
Include the next digit (0) from the dividend after 844, then repeat: 8440 / 855

Step 8:
855 goes into 8440 9 times with a remainder of 745.
Put 9 as the next digit of the answer. 
Result so far: 24199.0
The remainder is 745 after subtracting 7695 from 8440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7450, and continue the process.

Advancing to step 9:
The number 855 fits into 7450 8 times, leaving a remainder of 610.
Put 8 as the next digit of the answer. 
Result so far: 24199.8
The remainder is 610 after subtracting 6840 from 7450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6100, and continue the process.

Let's proceed to step 10:
When dividing 6100 by 855, we get 7 with a remainder of 115.
Put 7 as the next digit of the answer. 
Result so far: 24199.87
Subtracting 5985 from 6100 leaves us with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Advancing to step 11:
855 can be fit into 1150 1 times, resulting in a remainder of 295.
Put 1 as the next digit of the answer. 
Result so far: 24199.871
Subtract 855 from 1150 to get 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Moving on to step 12:
The number 855 fits into 2950 3 times, leaving a remainder of 385.
The next digit of our result is 3. 
Result so far: 24199.8713
The remainder is 385 after subtracting 2565 from 2950.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

Step 13:
When dividing 3850 by 855, we get 4 with a remainder of 430.
Use 4 as the next digit of our solution. 
Result so far: 24199.87134
Subtracting 3420 from 3850 leaves us with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 14:
If we divide 4300 by 855, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 24199.871345
Subtract 4275 from 4300 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Let's proceed to step 15:
855 can be fit into 250 0 times, resulting in a remainder of 250.
The number 0 becomes the next digit in our result. 
Result so far: 24199.871345
Subtracting 0 from 250 leaves us with 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Let's proceed to step 16:
If we divide 2500 by 855, we get 2 and a remainder of 790.
Use 2 as the next digit of our solution. 
Result so far: 24199.87134502
The remainder is 790 after subtracting 1710 from 2500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7900, and continue the process.

After the division, we end up with 24199.87134502 and a remainder of 7.9e-07.