We're dividing 80437464 by 640 
We're looking to find how many times 640 goes into 80437464.

Step 1:
640 can be fit into 8 0 times, resulting in a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Append the next digit (0) from the dividend to 8 and continue with: 80 / 640

Going ahead to step 2:
640 can be fit into 80 0 times, resulting in a remainder of 80.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 80, we end up with 80.
Fetch the next digit (4) from the dividend, attach it to 80 and continue: 804 / 640

Going ahead to step 3:
804 divided by 640 is 1 with a remainder of 164.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 640 from 804 to get 164.
Fetch the next digit (3) from the dividend, attach it to 164 and continue: 1643 / 640

Advancing to step 4:
The number 640 fits into 1643 2 times, leaving a remainder of 363.
Put 2 as the next digit of the answer. 
Result so far: 12.0
If we take 1280 away from 1643, we end up with 363.
Append the next digit (7) from the dividend to 363 and continue with: 3637 / 640

Step 5:
If we divide 3637 by 640, we get 5 and a remainder of 437.
Put 5 as the next digit of the answer. 
Result so far: 125.0
Deduct 3200 from 3637 and we're left with 437.
Grab the next digit (4) from the dividend, add it to 437, then carry on: 4374 / 640

Step 6:
When dividing 4374 by 640, we get 6 with a remainder of 534.
Write down 6 as next digit of the result. 
Result so far: 1256.0
Deduct 3840 from 4374 and we're left with 534.
Append the next digit (6) from the dividend to 534 and continue with: 5346 / 640

Advancing to step 7:
640 goes into 5346 8 times with a remainder of 226.
Record the quotient 8 as the next digit in the result. 
Result so far: 12568.0
Deduct 5120 from 5346 and we're left with 226.
Fetch the next digit (4) from the dividend, attach it to 226 and continue: 2264 / 640

Step 8:
If we divide 2264 by 640, we get 3 and a remainder of 344.
Put 3 as the next digit of the answer. 
Result so far: 125683.0
If we subtract 1920 from 2264, we get 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

On to step 9:
3440 divided by 640 is 5 with a remainder of 240.
The next digit of our result is 5. 
Result so far: 125683.5
Deduct 3200 from 3440 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Step 10:
640 can be fit into 2400 3 times, resulting in a remainder of 480.
The number 3 becomes the next digit in our result. 
Result so far: 125683.53
Deduct 1920 from 2400 and we're left with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 11:
The number 640 fits into 4800 7 times, leaving a remainder of 320.
Write down 7 as next digit of the result. 
Result so far: 125683.537
If we take 4480 away from 4800, 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.

On to step 12:
The number 640 fits into 3200 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 125683.5375
If we take 3200 away from 3200, 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.

On to step 13:
The number 640 fits into 0 0 times, leaving a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 125683.5375
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.

Moving on to step 14:
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: 125683.5375
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 125683.5375, and the remainder is 0.0.