72001920 ÷ 1 
Let's see how many times 1 fits into 72001920.

Advancing to step 1:
1 goes into 7 7 times with a remainder of 0.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we subtract 7 from 7, we get 0.
Bring next digit (2) of the dividend behind the 0 and repeat the process: 2 / 1

Going ahead to step 2:
The number 1 fits into 2 2 times, leaving a remainder of 0.
Record the quotient 2 as the next digit in the result. 
Result so far: 72.0
If we subtract 2 from 2, we get 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 1

Step 3:
1 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 720.0
If we take 0 away from 0, we end up with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 1

Going ahead to step 4:
If we divide 0 by 1, we get 0 and a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 7200.0
If we subtract 0 from 0, we get 0.
Take the next digit (1) from the dividend and append it to 0, then repeat: 1 / 1

On to step 5:
When dividing 1 by 1, we get 1 with a remainder of 0.
The next digit of our result is 1. 
Result so far: 72001.0
Subtract 1 from 1 to get 0.
Include the next digit (9) from the dividend after 0, then repeat: 9 / 1

On to step 6:
If we divide 9 by 1, we get 9 and a remainder of 0.
Use 9 as the next digit of our solution. 
Result so far: 720019.0
Deduct 9 from 9 and we're left with 0.
Fetch the next digit (2) from the dividend, attach it to 0 and continue: 2 / 1

Going ahead to step 7:
1 can be fit into 2 2 times, resulting in a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 7200192.0
If we take 2 away from 2, we end up with 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 1

On to step 8:
0 divided by 1 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 72001920.0
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.

Advancing to step 9:
If we divide 0 by 1, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 72001920.0
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.

On to step 10:
1 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 72001920.0
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.

After the division, we end up with 72001920.0 and a remainder of 0.0.