73892043 ÷ 638 
Our goal is to divide 73892043 by 638.

Let's proceed to step 1:
638 can be fit into 7 0 times, resulting in a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (3) from the dividend to 7 and continue with: 73 / 638

Advancing to step 2:
When dividing 73 by 638, we get 0 with a remainder of 73.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 73 leaves us with 73.
Include the next digit (8) from the dividend after 73, then repeat: 738 / 638

On to step 3:
If we divide 738 by 638, we get 1 and a remainder of 100.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 638 from 738 and we're left with 100.
Fetch the next digit (9) from the dividend, attach it to 100 and continue: 1009 / 638

Let's proceed to step 4:
If we divide 1009 by 638, we get 1 and a remainder of 371.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 638 from 1009 leaves us with 371.
Append the next digit (2) from the dividend to 371 and continue with: 3712 / 638

On to step 5:
If we divide 3712 by 638, we get 5 and a remainder of 522.
Put 5 as the next digit of the answer. 
Result so far: 115.0
If we take 3190 away from 3712, we end up with 522.
Include the next digit (0) from the dividend after 522, then repeat: 5220 / 638

Going ahead to step 6:
638 goes into 5220 8 times with a remainder of 116.
The number 8 becomes the next digit in our result. 
Result so far: 1158.0
The remainder is 116 after subtracting 5104 from 5220.
Include the next digit (4) from the dividend after 116, then repeat: 1164 / 638

Going ahead to step 7:
638 can be fit into 1164 1 times, resulting in a remainder of 526.
Record the quotient 1 as the next digit in the result. 
Result so far: 11581.0
Deduct 638 from 1164 and we're left with 526.
Append the next digit (3) from the dividend to 526 and continue with: 5263 / 638

Let's proceed to step 8:
638 can be fit into 5263 8 times, resulting in a remainder of 159.
Use 8 as the next digit of our solution. 
Result so far: 115818.0
If we take 5104 away from 5263, we end up with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Step 9:
638 can be fit into 1590 2 times, resulting in a remainder of 314.
Write down 2 as next digit of the result. 
Result so far: 115818.2
If we take 1276 away from 1590, we end up with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

On to step 10:
3140 divided by 638 is 4 with a remainder of 588.
The next digit of our result is 4. 
Result so far: 115818.24
If we subtract 2552 from 3140, we get 588.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5880, and continue the process.

Advancing to step 11:
5880 divided by 638 is 9 with a remainder of 138.
The number 9 becomes the next digit in our result. 
Result so far: 115818.249
If we subtract 5742 from 5880, 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.

Advancing to step 12:
638 goes into 1380 2 times with a remainder of 104.
The next digit of our result is 2. 
Result so far: 115818.2492
If we subtract 1276 from 1380, we get 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

Let's proceed to step 13:
638 can be fit into 1040 1 times, resulting in a remainder of 402.
The number 1 becomes the next digit in our result. 
Result so far: 115818.24921
If we subtract 638 from 1040, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Advancing to step 14:
If we divide 4020 by 638, we get 6 and a remainder of 192.
Use 6 as the next digit of our solution. 
Result so far: 115818.249216
Deduct 3828 from 4020 and we're left with 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Let's proceed to step 15:
The number 638 fits into 1920 3 times, leaving a remainder of 6.
Use 3 as the next digit of our solution. 
Result so far: 115818.2492163
If we subtract 1914 from 1920, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 16:
The number 638 fits into 60 0 times, leaving a remainder of 60.
Put 0 as the next digit of the answer. 
Result so far: 115818.2492163
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

The final result is 115818.2492163 with a remainder of 6e-08.