65873091 ÷ 783 
Our goal is to divide 65873091 by 783.

Step 1:
783 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (5) of the dividend behind the 6 and repeat the process: 65 / 783

On to step 2:
65 divided by 783 is 0 with a remainder of 65.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 65, we get 65.
Fetch the next digit (8) from the dividend, attach it to 65 and continue: 658 / 783

Moving on to step 3:
When dividing 658 by 783, we get 0 with a remainder of 658.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 658, we get 658.
Grab the next digit (7) from the dividend, add it to 658, then carry on: 6587 / 783

Moving on to step 4:
783 can be fit into 6587 8 times, resulting in a remainder of 323.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
The remainder is 323 after subtracting 6264 from 6587.
Append the next digit (3) from the dividend to 323 and continue with: 3233 / 783

Let's proceed to step 5:
The number 783 fits into 3233 4 times, leaving a remainder of 101.
Write down 4 as next digit of the result. 
Result so far: 84.0
The remainder is 101 after subtracting 3132 from 3233.
Bring next digit (0) of the dividend behind the 101 and repeat the process: 1010 / 783

On to step 6:
783 can be fit into 1010 1 times, resulting in a remainder of 227.
Write down 1 as next digit of the result. 
Result so far: 841.0
Subtracting 783 from 1010 leaves us with 227.
Include the next digit (9) from the dividend after 227, then repeat: 2279 / 783

On to step 7:
783 goes into 2279 2 times with a remainder of 713.
Use 2 as the next digit of our solution. 
Result so far: 8412.0
Deduct 1566 from 2279 and we're left with 713.
Fetch the next digit (1) from the dividend, attach it to 713 and continue: 7131 / 783

Going ahead to step 8:
783 can be fit into 7131 9 times, resulting in a remainder of 84.
The next digit of our result is 9. 
Result so far: 84129.0
If we take 7047 away from 7131, we end up with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 9:
The number 783 fits into 840 1 times, leaving a remainder of 57.
Use 1 as the next digit of our solution. 
Result so far: 84129.1
If we subtract 783 from 840, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 10:
783 can be fit into 570 0 times, resulting in a remainder of 570.
Put 0 as the next digit of the answer. 
Result so far: 84129.1
Deduct 0 from 570 and we're left 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.

On to step 11:
When dividing 5700 by 783, we get 7 with a remainder of 219.
Record the quotient 7 as the next digit in the result. 
Result so far: 84129.107
If we take 5481 away from 5700, we end up with 219.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2190, and continue the process.

Moving on to step 12:
783 can be fit into 2190 2 times, resulting in a remainder of 624.
The next digit of our result is 2. 
Result so far: 84129.1072
If we subtract 1566 from 2190, we get 624.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6240, and continue the process.

Step 13:
6240 divided by 783 is 7 with a remainder of 759.
Record the quotient 7 as the next digit in the result. 
Result so far: 84129.10727
Subtracting 5481 from 6240 leaves us with 759.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7590, and continue the process.

Let's proceed to step 14:
783 goes into 7590 9 times with a remainder of 543.
The number 9 becomes the next digit in our result. 
Result so far: 84129.107279
If we subtract 7047 from 7590, we get 543.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5430, and continue the process.

Moving on to step 15:
The number 783 fits into 5430 6 times, leaving a remainder of 732.
Use 6 as the next digit of our solution. 
Result so far: 84129.1072796
The remainder is 732 after subtracting 4698 from 5430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

Let's proceed to step 16:
783 goes into 7320 9 times with a remainder of 273.
Put 9 as the next digit of the answer. 
Result so far: 84129.10727969
Subtract 7047 from 7320 to get 273.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2730, and continue the process.

The final outcome is 84129.10727969, with a leftover of 2.73e-07.