Let's divide 20871431 by 620
Our goal is to divide 20871431 by 620.

Step 1:
620 goes into 2 0 times with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 620

Moving on to step 2:
The number 620 fits into 20 0 times, leaving a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 20 leaves us with 20.
Include the next digit (8) from the dividend after 20, then repeat: 208 / 620

On to step 3:
The number 620 fits into 208 0 times, leaving a remainder of 208.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 208 leaves us with 208.
Bring next digit (7) of the dividend behind the 208 and repeat the process: 2087 / 620

Moving on to step 4:
When dividing 2087 by 620, we get 3 with a remainder of 227.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtracting 1860 from 2087 leaves us with 227.
Include the next digit (1) from the dividend after 227, then repeat: 2271 / 620

On to step 5:
When dividing 2271 by 620, we get 3 with a remainder of 411.
The next digit of our result is 3. 
Result so far: 33.0
Subtract 1860 from 2271 to get 411.
Fetch the next digit (4) from the dividend, attach it to 411 and continue: 4114 / 620

Let's proceed to step 6:
4114 divided by 620 is 6 with a remainder of 394.
Use 6 as the next digit of our solution. 
Result so far: 336.0
Subtract 3720 from 4114 to get 394.
Grab the next digit (3) from the dividend, add it to 394, then carry on: 3943 / 620

Advancing to step 7:
If we divide 3943 by 620, we get 6 and a remainder of 223.
The next digit of our result is 6. 
Result so far: 3366.0
Subtract 3720 from 3943 to get 223.
Append the next digit (1) from the dividend to 223 and continue with: 2231 / 620

Advancing to step 8:
620 goes into 2231 3 times with a remainder of 371.
Write down 3 as next digit of the result. 
Result so far: 33663.0
If we take 1860 away from 2231, we end up with 371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

On to step 9:
3710 divided by 620 is 5 with a remainder of 610.
Put 5 as the next digit of the answer. 
Result so far: 33663.5
The remainder is 610 after subtracting 3100 from 3710.
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:
The number 620 fits into 6100 9 times, leaving a remainder of 520.
Write down 9 as next digit of the result. 
Result so far: 33663.59
Deduct 5580 from 6100 and we're left with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 11:
5200 divided by 620 is 8 with a remainder of 240.
The number 8 becomes the next digit in our result. 
Result so far: 33663.598
Subtract 4960 from 5200 to get 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

On to step 12:
620 goes into 2400 3 times with a remainder of 540.
Record the quotient 3 as the next digit in the result. 
Result so far: 33663.5983
Subtracting 1860 from 2400 leaves us with 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Going ahead to step 13:
When dividing 5400 by 620, we get 8 with a remainder of 440.
Put 8 as the next digit of the answer. 
Result so far: 33663.59838
If we subtract 4960 from 5400, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Going ahead to step 14:
620 can be fit into 4400 7 times, resulting in a remainder of 60.
The number 7 becomes the next digit in our result. 
Result so far: 33663.598387
Deduct 4340 from 4400 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 15:
When dividing 600 by 620, we get 0 with a remainder of 600.
The number 0 becomes the next digit in our result. 
Result so far: 33663.598387
If we subtract 0 from 600, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Advancing to step 16:
620 can be fit into 6000 9 times, resulting in a remainder of 420.
Use 9 as the next digit of our solution. 
Result so far: 33663.59838709
The remainder is 420 after subtracting 5580 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Our division results in 33663.59838709 with a remaining 4.2e-07.