Let's divide 2205639 by 621
We want to divide 2205639 by 621.

Advancing to step 1:
2 divided by 621 is 0 with a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 621

Let's proceed to step 2:
621 can be fit into 22 0 times, resulting in a remainder of 22.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 22 leaves us with 22.
Bring next digit (0) of the dividend behind the 22 and repeat the process: 220 / 621

Going ahead to step 3:
621 can be fit into 220 0 times, resulting in a remainder of 220.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 220 after subtracting 0 from 220.
Fetch the next digit (5) from the dividend, attach it to 220 and continue: 2205 / 621

Step 4:
621 goes into 2205 3 times with a remainder of 342.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 1863 from 2205 leaves us with 342.
Bring next digit (6) of the dividend behind the 342 and repeat the process: 3426 / 621

Let's proceed to step 5:
The number 621 fits into 3426 5 times, leaving a remainder of 321.
The number 5 becomes the next digit in our result. 
Result so far: 35.0
The remainder is 321 after subtracting 3105 from 3426.
Append the next digit (3) from the dividend to 321 and continue with: 3213 / 621

Going ahead to step 6:
The number 621 fits into 3213 5 times, leaving a remainder of 108.
Put 5 as the next digit of the answer. 
Result so far: 355.0
Deduct 3105 from 3213 and we're left with 108.
Take the next digit (9) from the dividend and append it to 108, then repeat: 1089 / 621

Advancing to step 7:
621 can be fit into 1089 1 times, resulting in a remainder of 468.
Write down 1 as next digit of the result. 
Result so far: 3551.0
Deduct 621 from 1089 and we're left with 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Advancing to step 8:
621 goes into 4680 7 times with a remainder of 333.
The number 7 becomes the next digit in our result. 
Result so far: 3551.7
Subtracting 4347 from 4680 leaves us with 333.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3330, and continue the process.

Step 9:
621 can be fit into 3330 5 times, resulting in a remainder of 225.
Put 5 as the next digit of the answer. 
Result so far: 3551.75
Subtracting 3105 from 3330 leaves us with 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Let's proceed to step 10:
621 can be fit into 2250 3 times, resulting in a remainder of 387.
Put 3 as the next digit of the answer. 
Result so far: 3551.753
Deduct 1863 from 2250 and we're left with 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Advancing to step 11:
3870 divided by 621 is 6 with a remainder of 144.
Write down 6 as next digit of the result. 
Result so far: 3551.7536
Deduct 3726 from 3870 and we're left with 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Going ahead to step 12:
621 goes into 1440 2 times with a remainder of 198.
The next digit of our result is 2. 
Result so far: 3551.75362
Subtract 1242 from 1440 to get 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Step 13:
The number 621 fits into 1980 3 times, leaving a remainder of 117.
Use 3 as the next digit of our solution. 
Result so far: 3551.753623
The remainder is 117 after subtracting 1863 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Advancing to step 14:
The number 621 fits into 1170 1 times, leaving a remainder of 549.
Use 1 as the next digit of our solution. 
Result so far: 3551.7536231
Deduct 621 from 1170 and we're left with 549.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5490, and continue the process.

Step 15:
5490 divided by 621 is 8 with a remainder of 522.
The number 8 becomes the next digit in our result. 
Result so far: 3551.75362318
Subtracting 4968 from 5490 leaves us with 522.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5220, and continue the process.

After the division, we end up with 3551.75362318 and a remainder of 5.22e-07.