We look at the division of 19210918 by 438 
We're looking to find how many times 438 goes into 19210918.

Moving on to step 1:
If we divide 1 by 438, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Bring next digit (9) of the dividend behind the 1 and repeat the process: 19 / 438

On to step 2:
438 goes into 19 0 times with a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 19 after subtracting 0 from 19.
Fetch the next digit (2) from the dividend, attach it to 19 and continue: 192 / 438

Moving on to step 3:
438 can be fit into 192 0 times, resulting in a remainder of 192.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 192 after subtracting 0 from 192.
Bring next digit (1) of the dividend behind the 192 and repeat the process: 1921 / 438

Advancing to step 4:
1921 divided by 438 is 4 with a remainder of 169.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
If we take 1752 away from 1921, we end up with 169.
Grab the next digit (0) from the dividend, add it to 169, then carry on: 1690 / 438

Step 5:
The number 438 fits into 1690 3 times, leaving a remainder of 376.
Write down 3 as next digit of the result. 
Result so far: 43.0
If we take 1314 away from 1690, we end up with 376.
Grab the next digit (9) from the dividend, add it to 376, then carry on: 3769 / 438

Moving on to step 6:
438 can be fit into 3769 8 times, resulting in a remainder of 265.
Record the quotient 8 as the next digit in the result. 
Result so far: 438.0
Deduct 3504 from 3769 and we're left with 265.
Include the next digit (1) from the dividend after 265, then repeat: 2651 / 438

Advancing to step 7:
When dividing 2651 by 438, we get 6 with a remainder of 23.
Write down 6 as next digit of the result. 
Result so far: 4386.0
The remainder is 23 after subtracting 2628 from 2651.
Bring next digit (8) of the dividend behind the 23 and repeat the process: 238 / 438

On to step 8:
The number 438 fits into 238 0 times, leaving a remainder of 238.
The next digit of our result is 0. 
Result so far: 43860.0
If we take 0 away from 238, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Let's proceed to step 9:
The number 438 fits into 2380 5 times, leaving a remainder of 190.
Write down 5 as next digit of the result. 
Result so far: 43860.5
Subtract 2190 from 2380 to get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 10:
438 goes into 1900 4 times with a remainder of 148.
Use 4 as the next digit of our solution. 
Result so far: 43860.54
Deduct 1752 from 1900 and we're left with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Advancing to step 11:
The number 438 fits into 1480 3 times, leaving a remainder of 166.
The number 3 becomes the next digit in our result. 
Result so far: 43860.543
Subtract 1314 from 1480 to get 166.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1660, and continue the process.

Moving on to step 12:
The number 438 fits into 1660 3 times, leaving a remainder of 346.
Use 3 as the next digit of our solution. 
Result so far: 43860.5433
If we subtract 1314 from 1660, we get 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

Our division results in 43860.5433 with a remaining 0.00346.