We divide 71680034 by 640
We want to divide 71680034 by 640.

Going ahead to step 1:
7 divided by 640 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 640

Advancing to step 2:
When dividing 71 by 640, we get 0 with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Include the next digit (6) from the dividend after 71, then repeat: 716 / 640

Advancing to step 3:
716 divided by 640 is 1 with a remainder of 76.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 640 from 716, we get 76.
Grab the next digit (8) from the dividend, add it to 76, then carry on: 768 / 640

Moving on to step 4:
If we divide 768 by 640, we get 1 and a remainder of 128.
Use 1 as the next digit of our solution. 
Result so far: 11.0
If we subtract 640 from 768, we get 128.
Take the next digit (0) from the dividend and append it to 128, then repeat: 1280 / 640

Moving on to step 5:
640 can be fit into 1280 2 times, resulting in a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 112.0
If we subtract 1280 from 1280, we get 0.
Include the next digit (0) from the dividend after 0, then repeat: 0 / 640

Step 6:
0 divided by 640 is 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 1120.0
The remainder is 0 after subtracting 0 from 0.
Bring next digit (3) of the dividend behind the 0 and repeat the process: 3 / 640

On to step 7:
640 goes into 3 0 times with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 11200.0
The remainder is 3 after subtracting 0 from 3.
Append the next digit (4) from the dividend to 3 and continue with: 34 / 640

Going ahead to step 8:
The number 640 fits into 34 0 times, leaving a remainder of 34.
Write down 0 as next digit of the result. 
Result so far: 112000.0
The remainder is 34 after subtracting 0 from 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 9:
The number 640 fits into 340 0 times, leaving a remainder of 340.
The next digit of our result is 0. 
Result so far: 112000.0
If we take 0 away from 340, we end up with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 10:
640 can be fit into 3400 5 times, resulting in a remainder of 200.
Record the quotient 5 as the next digit in the result. 
Result so far: 112000.05
Deduct 3200 from 3400 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 11:
The number 640 fits into 2000 3 times, leaving a remainder of 80.
The number 3 becomes the next digit in our result. 
Result so far: 112000.053
The remainder is 80 after subtracting 1920 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 12:
640 goes into 800 1 times with a remainder of 160.
Record the quotient 1 as the next digit in the result. 
Result so far: 112000.0531
If we take 640 away from 800, we end up 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 13:
When dividing 1600 by 640, we get 2 with a remainder of 320.
The next digit of our result is 2. 
Result so far: 112000.05312
Subtracting 1280 from 1600 leaves us 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.

On to step 14:
640 can be fit into 3200 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 112000.053125
The remainder is 0 after subtracting 3200 from 3200.
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 15:
The number 640 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 112000.053125
Deduct 0 from 0 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.

Advancing to step 16:
640 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 112000.053125
Deduct 0 from 0 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.

The quotient of the division is 112000.053125, and the remainder is 0.0.