We divide 80107583 by 649
We want to divide 80107583 by 649.

Let's proceed to step 1:
649 goes into 8 0 times with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 649

Advancing to step 2:
649 goes into 80 0 times with a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Fetch the next digit (1) from the dividend, attach it to 80 and continue: 801 / 649

Advancing to step 3:
649 can be fit into 801 1 times, resulting in a remainder of 152.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 649 from 801, we get 152.
Take the next digit (0) from the dividend and append it to 152, then repeat: 1520 / 649

On to step 4:
When dividing 1520 by 649, we get 2 with a remainder of 222.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtracting 1298 from 1520 leaves us with 222.
Append the next digit (7) from the dividend to 222 and continue with: 2227 / 649

Let's proceed to step 5:
The number 649 fits into 2227 3 times, leaving a remainder of 280.
Record the quotient 3 as the next digit in the result. 
Result so far: 123.0
If we take 1947 away from 2227, we end up with 280.
Bring next digit (5) of the dividend behind the 280 and repeat the process: 2805 / 649

Moving on to step 6:
If we divide 2805 by 649, we get 4 and a remainder of 209.
Put 4 as the next digit of the answer. 
Result so far: 1234.0
Subtract 2596 from 2805 to get 209.
Append the next digit (8) from the dividend to 209 and continue with: 2098 / 649

On to step 7:
2098 divided by 649 is 3 with a remainder of 151.
The number 3 becomes the next digit in our result. 
Result so far: 12343.0
Deduct 1947 from 2098 and we're left with 151.
Include the next digit (3) from the dividend after 151, then repeat: 1513 / 649

On to step 8:
649 goes into 1513 2 times with a remainder of 215.
The number 2 becomes the next digit in our result. 
Result so far: 123432.0
Subtract 1298 from 1513 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 9:
649 goes into 2150 3 times with a remainder of 203.
The next digit of our result is 3. 
Result so far: 123432.3
If we take 1947 away from 2150, we end up with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Advancing to step 10:
The number 649 fits into 2030 3 times, leaving a remainder of 83.
The next digit of our result is 3. 
Result so far: 123432.33
Subtract 1947 from 2030 to get 83.
Since there are no more digits in the dividend, we add a zero to the remainder making it 830, and continue the process.

The final outcome is 123432.33, with a leftover of 0.083.