83819436 divided by 640 
Let's see how many times 640 fits into 83819436.

Let's proceed to step 1:
640 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (3) from the dividend, attach it to 8 and continue: 83 / 640

On to step 2:
If we divide 83 by 640, we get 0 and a remainder of 83.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 83, we end up with 83.
Include the next digit (8) from the dividend after 83, then repeat: 838 / 640

Step 3:
The number 640 fits into 838 1 times, leaving a remainder of 198.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 640 from 838 to get 198.
Bring next digit (1) of the dividend behind the 198 and repeat the process: 1981 / 640

On to step 4:
When dividing 1981 by 640, we get 3 with a remainder of 61.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
If we subtract 1920 from 1981, we get 61.
Include the next digit (9) from the dividend after 61, then repeat: 619 / 640

Step 5:
If we divide 619 by 640, we get 0 and a remainder of 619.
Use 0 as the next digit of our solution. 
Result so far: 130.0
Subtract 0 from 619 to get 619.
Take the next digit (4) from the dividend and append it to 619, then repeat: 6194 / 640

Advancing to step 6:
The number 640 fits into 6194 9 times, leaving a remainder of 434.
Record the quotient 9 as the next digit in the result. 
Result so far: 1309.0
If we take 5760 away from 6194, we end up with 434.
Bring next digit (3) of the dividend behind the 434 and repeat the process: 4343 / 640

Going ahead to step 7:
The number 640 fits into 4343 6 times, leaving a remainder of 503.
Record the quotient 6 as the next digit in the result. 
Result so far: 13096.0
The remainder is 503 after subtracting 3840 from 4343.
Bring next digit (6) of the dividend behind the 503 and repeat the process: 5036 / 640

Going ahead to step 8:
When dividing 5036 by 640, we get 7 with a remainder of 556.
The next digit of our result is 7. 
Result so far: 130967.0
Deduct 4480 from 5036 and we're left with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Advancing to step 9:
When dividing 5560 by 640, we get 8 with a remainder of 440.
Use 8 as the next digit of our solution. 
Result so far: 130967.8
Deduct 5120 from 5560 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Let's proceed to step 10:
When dividing 4400 by 640, we get 6 with a remainder of 560.
Write down 6 as next digit of the result. 
Result so far: 130967.86
Subtract 3840 from 4400 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Step 11:
5600 divided by 640 is 8 with a remainder of 480.
Write down 8 as next digit of the result. 
Result so far: 130967.868
The remainder is 480 after subtracting 5120 from 5600.
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 12:
When dividing 4800 by 640, we get 7 with a remainder of 320.
The number 7 becomes the next digit in our result. 
Result so far: 130967.8687
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.

Let's proceed to step 13:
3200 divided by 640 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 130967.86875
Subtracting 3200 from 3200 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.

Step 14:
640 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 130967.86875
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.

Step 15:
If we divide 0 by 640, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 130967.86875
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.

The final outcome is 130967.86875, with a leftover of 0.0.