Let's divide 72007557 by 438
We're looking to find how many times 438 goes into 72007557.

Moving on to step 1:
7 divided by 438 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 438

Step 2:
When dividing 72 by 438, we get 0 with a remainder of 72.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 72 and we're left with 72.
Take the next digit (0) from the dividend and append it to 72, then repeat: 720 / 438

Advancing to step 3:
When dividing 720 by 438, we get 1 with a remainder of 282.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 438 from 720 leaves us with 282.
Append the next digit (0) from the dividend to 282 and continue with: 2820 / 438

Moving on to step 4:
2820 divided by 438 is 6 with a remainder of 192.
Use 6 as the next digit of our solution. 
Result so far: 16.0
If we take 2628 away from 2820, we end up with 192.
Grab the next digit (7) from the dividend, add it to 192, then carry on: 1927 / 438

Advancing to step 5:
If we divide 1927 by 438, we get 4 and a remainder of 175.
Use 4 as the next digit of our solution. 
Result so far: 164.0
If we subtract 1752 from 1927, we get 175.
Grab the next digit (5) from the dividend, add it to 175, then carry on: 1755 / 438

Step 6:
The number 438 fits into 1755 4 times, leaving a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 1644.0
Subtract 1752 from 1755 to get 3.
Append the next digit (5) from the dividend to 3 and continue with: 35 / 438

On to step 7:
438 can be fit into 35 0 times, resulting in a remainder of 35.
Put 0 as the next digit of the answer. 
Result so far: 16440.0
If we take 0 away from 35, we end up with 35.
Fetch the next digit (7) from the dividend, attach it to 35 and continue: 357 / 438

Let's proceed to step 8:
438 goes into 357 0 times with a remainder of 357.
Put 0 as the next digit of the answer. 
Result so far: 164400.0
Deduct 0 from 357 and we're left with 357.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3570, and continue the process.

Step 9:
The number 438 fits into 3570 8 times, leaving a remainder of 66.
The number 8 becomes the next digit in our result. 
Result so far: 164400.8
Subtract 3504 from 3570 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

On to step 10:
The number 438 fits into 660 1 times, leaving a remainder of 222.
Use 1 as the next digit of our solution. 
Result so far: 164400.81
Deduct 438 from 660 and we're left with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

On to step 11:
2220 divided by 438 is 5 with a remainder of 30.
The next digit of our result is 5. 
Result so far: 164400.815
Deduct 2190 from 2220 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
If we divide 300 by 438, we get 0 and a remainder of 300.
Use 0 as the next digit of our solution. 
Result so far: 164400.815
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 13:
The number 438 fits into 3000 6 times, leaving a remainder of 372.
The next digit of our result is 6. 
Result so far: 164400.81506
If we subtract 2628 from 3000, we get 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Going ahead to step 14:
When dividing 3720 by 438, we get 8 with a remainder of 216.
The next digit of our result is 8. 
Result so far: 164400.815068
If we take 3504 away from 3720, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Let's proceed to step 15:
If we divide 2160 by 438, we get 4 and a remainder of 408.
Record the quotient 4 as the next digit in the result. 
Result so far: 164400.8150684
The remainder is 408 after subtracting 1752 from 2160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Let's proceed to step 16:
438 can be fit into 4080 9 times, resulting in a remainder of 138.
The next digit of our result is 9. 
Result so far: 164400.81506849
If we subtract 3942 from 4080, we get 138.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

The final result is 164400.81506849 with a remainder of 1.38e-07.