We divide 2107880 by 438
We want to figure out the number of times 2107880 can be divided by 438.

Going ahead to step 1:
2 divided by 438 is 0 with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 438

On to step 2:
21 divided by 438 is 0 with a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Include the next digit (0) from the dividend after 21, then repeat: 210 / 438

Step 3:
The number 438 fits into 210 0 times, leaving a remainder of 210.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 210, we end up with 210.
Fetch the next digit (7) from the dividend, attach it to 210 and continue: 2107 / 438

Advancing to step 4:
2107 divided by 438 is 4 with a remainder of 355.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 1752 from 2107, we get 355.
Append the next digit (8) from the dividend to 355 and continue with: 3558 / 438

Advancing to step 5:
3558 divided by 438 is 8 with a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 48.0
The remainder is 54 after subtracting 3504 from 3558.
Include the next digit (8) from the dividend after 54, then repeat: 548 / 438

Advancing to step 6:
If we divide 548 by 438, we get 1 and a remainder of 110.
Put 1 as the next digit of the answer. 
Result so far: 481.0
Deduct 438 from 548 and we're left with 110.
Take the next digit (0) from the dividend and append it to 110, then repeat: 1100 / 438

Going ahead to step 7:
When dividing 1100 by 438, we get 2 with a remainder of 224.
Record the quotient 2 as the next digit in the result. 
Result so far: 4812.0
The remainder is 224 after subtracting 876 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Advancing to step 8:
2240 divided by 438 is 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 4812.5
Subtract 2190 from 2240 to get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 9:
When dividing 500 by 438, we get 1 with a remainder of 62.
The number 1 becomes the next digit in our result. 
Result so far: 4812.51
If we subtract 438 from 500, we get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 10:
438 can be fit into 620 1 times, resulting in a remainder of 182.
Write down 1 as next digit of the result. 
Result so far: 4812.511
If we subtract 438 from 620, we get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

The final outcome is 4812.511, with a leftover of 0.0182.