71737453 divided by 638 
We're looking to find how many times 638 goes into 71737453.

Moving on to step 1:
If we divide 7 by 638, we get 0 and a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 638

Step 2:
71 divided by 638 is 0 with a remainder of 71.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Fetch the next digit (7) from the dividend, attach it to 71 and continue: 717 / 638

Step 3:
If we divide 717 by 638, we get 1 and a remainder of 79.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 638 from 717 to get 79.
Bring next digit (3) of the dividend behind the 79 and repeat the process: 793 / 638

Moving on to step 4:
When dividing 793 by 638, we get 1 with a remainder of 155.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtract 638 from 793 to get 155.
Bring next digit (7) of the dividend behind the 155 and repeat the process: 1557 / 638

Going ahead to step 5:
The number 638 fits into 1557 2 times, leaving a remainder of 281.
Use 2 as the next digit of our solution. 
Result so far: 112.0
If we subtract 1276 from 1557, we get 281.
Bring next digit (4) of the dividend behind the 281 and repeat the process: 2814 / 638

Going ahead to step 6:
638 goes into 2814 4 times with a remainder of 262.
Record the quotient 4 as the next digit in the result. 
Result so far: 1124.0
If we subtract 2552 from 2814, we get 262.
Include the next digit (5) from the dividend after 262, then repeat: 2625 / 638

Step 7:
The number 638 fits into 2625 4 times, leaving a remainder of 73.
Put 4 as the next digit of the answer. 
Result so far: 11244.0
Deduct 2552 from 2625 and we're left with 73.
Grab the next digit (3) from the dividend, add it to 73, then carry on: 733 / 638

Advancing to step 8:
If we divide 733 by 638, we get 1 and a remainder of 95.
The number 1 becomes the next digit in our result. 
Result so far: 112441.0
Subtract 638 from 733 to get 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

Going ahead to step 9:
When dividing 950 by 638, we get 1 with a remainder of 312.
The number 1 becomes the next digit in our result. 
Result so far: 112441.1
Subtract 638 from 950 to get 312.
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 10:
If we divide 3120 by 638, we get 4 and a remainder of 568.
Put 4 as the next digit of the answer. 
Result so far: 112441.14
If we take 2552 away from 3120, we end up with 568.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5680, and continue the process.

Step 11:
The number 638 fits into 5680 8 times, leaving a remainder of 576.
The number 8 becomes the next digit in our result. 
Result so far: 112441.148
Subtract 5104 from 5680 to get 576.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5760, and continue the process.

Step 12:
When dividing 5760 by 638, we get 9 with a remainder of 18.
Record the quotient 9 as the next digit in the result. 
Result so far: 112441.1489
If we take 5742 away from 5760, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

On to step 13:
180 divided by 638 is 0 with a remainder of 180.
Put 0 as the next digit of the answer. 
Result so far: 112441.1489
Subtracting 0 from 180 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Let's proceed to step 14:
638 goes into 1800 2 times with a remainder of 524.
Write down 2 as next digit of the result. 
Result so far: 112441.148902
Subtracting 1276 from 1800 leaves us with 524.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5240, and continue the process.

Going ahead to step 15:
638 can be fit into 5240 8 times, resulting in a remainder of 136.
Put 8 as the next digit of the answer. 
Result so far: 112441.1489028
If we take 5104 away from 5240, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Going ahead to step 16:
638 goes into 1360 2 times with a remainder of 84.
Write down 2 as next digit of the result. 
Result so far: 112441.14890282
The remainder is 84 after subtracting 1276 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

The final outcome is 112441.14890282, with a leftover of 8.4e-08.