We look at the division of 73889172 by 648 
We're looking to find how many times 648 goes into 73889172.

Moving on to step 1:
7 divided by 648 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 648

Advancing to step 2:
73 divided by 648 is 0 with a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 73, we get 73.
Fetch the next digit (8) from the dividend, attach it to 73 and continue: 738 / 648

Moving on to step 3:
When dividing 738 by 648, we get 1 with a remainder of 90.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 90 after subtracting 648 from 738.
Bring next digit (8) of the dividend behind the 90 and repeat the process: 908 / 648

Advancing to step 4:
908 divided by 648 is 1 with a remainder of 260.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Subtract 648 from 908 to get 260.
Include the next digit (9) from the dividend after 260, then repeat: 2609 / 648

Advancing to step 5:
648 goes into 2609 4 times with a remainder of 17.
The next digit of our result is 4. 
Result so far: 114.0
The remainder is 17 after subtracting 2592 from 2609.
Take the next digit (1) from the dividend and append it to 17, then repeat: 171 / 648

Going ahead to step 6:
When dividing 171 by 648, we get 0 with a remainder of 171.
Use 0 as the next digit of our solution. 
Result so far: 1140.0
Subtract 0 from 171 to get 171.
Fetch the next digit (7) from the dividend, attach it to 171 and continue: 1717 / 648

Advancing to step 7:
When dividing 1717 by 648, we get 2 with a remainder of 421.
The number 2 becomes the next digit in our result. 
Result so far: 11402.0
Deduct 1296 from 1717 and we're left with 421.
Fetch the next digit (2) from the dividend, attach it to 421 and continue: 4212 / 648

Moving on to step 8:
648 goes into 4212 6 times with a remainder of 324.
The next digit of our result is 6. 
Result so far: 114026.0
Subtracting 3888 from 4212 leaves us with 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Let's proceed to step 9:
When dividing 3240 by 648, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 114026.5
Deduct 3240 from 3240 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 10:
0 divided by 648 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 114026.5
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
The number 648 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 114026.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 114026.5 and a remainder of 0.0.