We look at the division of 21092446 by 620 
We're looking to find how many times 620 goes into 21092446.

Step 1:
If we divide 2 by 620, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
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 / 620

Going ahead to step 2:
The number 620 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Take the next digit (0) from the dividend and append it to 21, then repeat: 210 / 620

Moving on to step 3:
210 divided by 620 is 0 with a remainder of 210.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 210 and we're left with 210.
Append the next digit (9) from the dividend to 210 and continue with: 2109 / 620

On to step 4:
If we divide 2109 by 620, we get 3 and a remainder of 249.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 1860 from 2109 and we're left with 249.
Bring next digit (2) of the dividend behind the 249 and repeat the process: 2492 / 620

Moving on to step 5:
620 goes into 2492 4 times with a remainder of 12.
The next digit of our result is 4. 
Result so far: 34.0
If we subtract 2480 from 2492, we get 12.
Fetch the next digit (4) from the dividend, attach it to 12 and continue: 124 / 620

Going ahead to step 6:
620 goes into 124 0 times with a remainder of 124.
Write down 0 as next digit of the result. 
Result so far: 340.0
If we subtract 0 from 124, we get 124.
Append the next digit (4) from the dividend to 124 and continue with: 1244 / 620

On to step 7:
1244 divided by 620 is 2 with a remainder of 4.
The next digit of our result is 2. 
Result so far: 3402.0
If we take 1240 away from 1244, we end up with 4.
Grab the next digit (6) from the dividend, add it to 4, then carry on: 46 / 620

Let's proceed to step 8:
46 divided by 620 is 0 with a remainder of 46.
Put 0 as the next digit of the answer. 
Result so far: 34020.0
Subtracting 0 from 46 leaves us with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 9:
620 goes into 460 0 times with a remainder of 460.
Use 0 as the next digit of our solution. 
Result so far: 34020.0
Deduct 0 from 460 and we're left with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 10:
The number 620 fits into 4600 7 times, leaving a remainder of 260.
The number 7 becomes the next digit in our result. 
Result so far: 34020.07
Subtract 4340 from 4600 to get 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Going ahead to step 11:
If we divide 2600 by 620, we get 4 and a remainder of 120.
Use 4 as the next digit of our solution. 
Result so far: 34020.074
If we subtract 2480 from 2600, we get 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 12:
The number 620 fits into 1200 1 times, leaving a remainder of 580.
Record the quotient 1 as the next digit in the result. 
Result so far: 34020.0741
Deduct 620 from 1200 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.

Advancing to step 13:
The number 620 fits into 5800 9 times, leaving a remainder of 220.
Put 9 as the next digit of the answer. 
Result so far: 34020.07419
Subtract 5580 from 5800 to get 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 14:
2200 divided by 620 is 3 with a remainder of 340.
Use 3 as the next digit of our solution. 
Result so far: 34020.074193
Subtract 1860 from 2200 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 15:
The number 620 fits into 3400 5 times, leaving a remainder of 300.
Write down 5 as next digit of the result. 
Result so far: 34020.0741935
Subtracting 3100 from 3400 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Step 16:
3000 divided by 620 is 4 with a remainder of 520.
Put 4 as the next digit of the answer. 
Result so far: 34020.07419354
The remainder is 520 after subtracting 2480 from 3000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

In conclusion, the division gives 34020.07419354 with a balance of 5.2e-07.