99538011 ÷ 438 
Our goal is to divide 99538011 by 438.

Let's proceed to step 1:
When dividing 9 by 438, we get 0 with a remainder of 9.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Grab the next digit (9) from the dividend, add it to 9, then carry on: 99 / 438

On to step 2:
When dividing 99 by 438, we get 0 with a remainder of 99.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 99 leaves us with 99.
Fetch the next digit (5) from the dividend, attach it to 99 and continue: 995 / 438

Moving on to step 3:
438 goes into 995 2 times with a remainder of 119.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtract 876 from 995 to get 119.
Include the next digit (3) from the dividend after 119, then repeat: 1193 / 438

Going ahead to step 4:
When dividing 1193 by 438, we get 2 with a remainder of 317.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we take 876 away from 1193, we end up with 317.
Bring next digit (8) of the dividend behind the 317 and repeat the process: 3178 / 438

Moving on to step 5:
3178 divided by 438 is 7 with a remainder of 112.
Record the quotient 7 as the next digit in the result. 
Result so far: 227.0
Subtracting 3066 from 3178 leaves us with 112.
Take the next digit (0) from the dividend and append it to 112, then repeat: 1120 / 438

On to step 6:
When dividing 1120 by 438, we get 2 with a remainder of 244.
Use 2 as the next digit of our solution. 
Result so far: 2272.0
If we subtract 876 from 1120, we get 244.
Append the next digit (1) from the dividend to 244 and continue with: 2441 / 438

Step 7:
2441 divided by 438 is 5 with a remainder of 251.
Put 5 as the next digit of the answer. 
Result so far: 22725.0
The remainder is 251 after subtracting 2190 from 2441.
Take the next digit (1) from the dividend and append it to 251, then repeat: 2511 / 438

Let's proceed to step 8:
2511 divided by 438 is 5 with a remainder of 321.
Write down 5 as next digit of the result. 
Result so far: 227255.0
Subtracting 2190 from 2511 leaves us with 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Moving on to step 9:
When dividing 3210 by 438, we get 7 with a remainder of 144.
The next digit of our result is 7. 
Result so far: 227255.7
Subtract 3066 from 3210 to get 144.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1440, and continue the process.

Let's proceed to step 10:
If we divide 1440 by 438, we get 3 and a remainder of 126.
The number 3 becomes the next digit in our result. 
Result so far: 227255.73
Subtract 1314 from 1440 to get 126.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1260, and continue the process.

Let's proceed to step 11:
1260 divided by 438 is 2 with a remainder of 384.
The next digit of our result is 2. 
Result so far: 227255.732
The remainder is 384 after subtracting 876 from 1260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Advancing to step 12:
3840 divided by 438 is 8 with a remainder of 336.
Record the quotient 8 as the next digit in the result. 
Result so far: 227255.7328
The remainder is 336 after subtracting 3504 from 3840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Let's proceed to step 13:
The number 438 fits into 3360 7 times, leaving a remainder of 294.
The next digit of our result is 7. 
Result so far: 227255.73287
Deduct 3066 from 3360 and we're left with 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Advancing to step 14:
The number 438 fits into 2940 6 times, leaving a remainder of 312.
Use 6 as the next digit of our solution. 
Result so far: 227255.732876
The remainder is 312 after subtracting 2628 from 2940.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3120, and continue the process.

Moving on to step 15:
438 can be fit into 3120 7 times, resulting in a remainder of 54.
The number 7 becomes the next digit in our result. 
Result so far: 227255.7328767
If we take 3066 away from 3120, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 16:
If we divide 540 by 438, we get 1 and a remainder of 102.
The number 1 becomes the next digit in our result. 
Result so far: 227255.73287671
If we take 438 away from 540, we end up with 102.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1020, and continue the process.

The final result is 227255.73287671 with a remainder of 1.02e-07.