We divide 72215673 by 640
We want to divide 72215673 by 640.

On to step 1:
640 goes into 7 0 times with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Append the next digit (2) from the dividend to 7 and continue with: 72 / 640

Advancing to step 2:
The number 640 fits into 72 0 times, leaving a remainder of 72.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Append the next digit (2) from the dividend to 72 and continue with: 722 / 640

Advancing to step 3:
640 can be fit into 722 1 times, resulting in a remainder of 82.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtract 640 from 722 to get 82.
Include the next digit (1) from the dividend after 82, then repeat: 821 / 640

Moving on to step 4:
When dividing 821 by 640, we get 1 with a remainder of 181.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 640 from 821 and we're left with 181.
Grab the next digit (5) from the dividend, add it to 181, then carry on: 1815 / 640

On to step 5:
The number 640 fits into 1815 2 times, leaving a remainder of 535.
Write down 2 as next digit of the result. 
Result so far: 112.0
If we take 1280 away from 1815, we end up with 535.
Include the next digit (6) from the dividend after 535, then repeat: 5356 / 640

Advancing to step 6:
640 can be fit into 5356 8 times, resulting in a remainder of 236.
Use 8 as the next digit of our solution. 
Result so far: 1128.0
The remainder is 236 after subtracting 5120 from 5356.
Grab the next digit (7) from the dividend, add it to 236, then carry on: 2367 / 640

On to step 7:
2367 divided by 640 is 3 with a remainder of 447.
Use 3 as the next digit of our solution. 
Result so far: 11283.0
Deduct 1920 from 2367 and we're left with 447.
Grab the next digit (3) from the dividend, add it to 447, then carry on: 4473 / 640

Going ahead to step 8:
If we divide 4473 by 640, we get 6 and a remainder of 633.
Write down 6 as next digit of the result. 
Result so far: 112836.0
Deduct 3840 from 4473 and we're left with 633.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6330, and continue the process.

On to step 9:
When dividing 6330 by 640, we get 9 with a remainder of 570.
The next digit of our result is 9. 
Result so far: 112836.9
If we take 5760 away from 6330, we end up with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Step 10:
If we divide 5700 by 640, we get 8 and a remainder of 580.
Record the quotient 8 as the next digit in the result. 
Result so far: 112836.98
If we subtract 5120 from 5700, we get 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5800, and continue the process.

Step 11:
5800 divided by 640 is 9 with a remainder of 40.
The next digit of our result is 9. 
Result so far: 112836.989
If we take 5760 away from 5800, we end up with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 12:
400 divided by 640 is 0 with a remainder of 400.
Write down 0 as next digit of the result. 
Result so far: 112836.989
If we subtract 0 from 400, we get 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Step 13:
640 can be fit into 4000 6 times, resulting in a remainder of 160.
Write down 6 as next digit of the result. 
Result so far: 112836.98906
Subtracting 3840 from 4000 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.

Let's proceed to step 14:
If we divide 1600 by 640, we get 2 and a remainder of 320.
The next digit of our result is 2. 
Result so far: 112836.989062
If we take 1280 away from 1600, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 15:
When dividing 3200 by 640, we get 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 112836.9890625
Subtract 3200 from 3200 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.

Let's proceed to step 16:
If we divide 0 by 640, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 112836.9890625
If we take 0 away from 0, we end up 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 112836.9890625 and a remainder of 0.0.