We look at the division of 73621864 by 320 
We want to figure out the number of times 73621864 can be divided by 320.

Step 1:
The number 320 fits into 7 0 times, leaving a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (3) from the dividend after 7, then repeat: 73 / 320

Advancing to step 2:
If we divide 73 by 320, we get 0 and a remainder of 73.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 73, we end up with 73.
Grab the next digit (6) from the dividend, add it to 73, then carry on: 736 / 320

Going ahead to step 3:
736 divided by 320 is 2 with a remainder of 96.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 640 from 736 leaves us with 96.
Grab the next digit (2) from the dividend, add it to 96, then carry on: 962 / 320

Moving on to step 4:
The number 320 fits into 962 3 times, leaving a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 23.0
Deduct 960 from 962 and we're left with 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 320

Going ahead to step 5:
320 can be fit into 21 0 times, resulting in a remainder of 21.
Write down 0 as next digit of the result. 
Result so far: 230.0
If we subtract 0 from 21, we get 21.
Fetch the next digit (8) from the dividend, attach it to 21 and continue: 218 / 320

Step 6:
If we divide 218 by 320, we get 0 and a remainder of 218.
Write down 0 as next digit of the result. 
Result so far: 2300.0
Subtract 0 from 218 to get 218.
Append the next digit (6) from the dividend to 218 and continue with: 2186 / 320

On to step 7:
320 goes into 2186 6 times with a remainder of 266.
Write down 6 as next digit of the result. 
Result so far: 23006.0
Deduct 1920 from 2186 and we're left with 266.
Grab the next digit (4) from the dividend, add it to 266, then carry on: 2664 / 320

Let's proceed to step 8:
2664 divided by 320 is 8 with a remainder of 104.
Record the quotient 8 as the next digit in the result. 
Result so far: 230068.0
The remainder is 104 after subtracting 2560 from 2664.
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 9:
When dividing 1040 by 320, we get 3 with a remainder of 80.
Put 3 as the next digit of the answer. 
Result so far: 230068.3
Subtract 960 from 1040 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Let's proceed to step 10:
320 goes into 800 2 times with a remainder of 160.
Use 2 as the next digit of our solution. 
Result so far: 230068.32
Subtracting 640 from 800 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Advancing to step 11:
The number 320 fits into 1600 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 230068.325
The remainder is 0 after subtracting 1600 from 1600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 12:
When dividing 0 by 320, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 230068.325
If we subtract 0 from 0, we 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.

Step 13:
When dividing 0 by 320, we get 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 230068.325
Subtracting 0 from 0 leaves us 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.

After the division, we end up with 230068.325 and a remainder of 0.0.