640791 divided by 69 
Our goal is to divide 640791 by 69.

Step 1:
69 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 69

Moving on to step 2:
64 divided by 69 is 0 with a remainder of 64.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 64 leaves us with 64.
Include the next digit (0) from the dividend after 64, then repeat: 640 / 69

Going ahead to step 3:
If we divide 640 by 69, we get 9 and a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 621 from 640 and we're left with 19.
Take the next digit (7) from the dividend and append it to 19, then repeat: 197 / 69

Step 4:
69 goes into 197 2 times with a remainder of 59.
Write down 2 as next digit of the result. 
Result so far: 92.0
Deduct 138 from 197 and we're left with 59.
Fetch the next digit (9) from the dividend, attach it to 59 and continue: 599 / 69

On to step 5:
The number 69 fits into 599 8 times, leaving a remainder of 47.
The next digit of our result is 8. 
Result so far: 928.0
Subtracting 552 from 599 leaves us with 47.
Fetch the next digit (1) from the dividend, attach it to 47 and continue: 471 / 69

Moving on to step 6:
When dividing 471 by 69, we get 6 with a remainder of 57.
Put 6 as the next digit of the answer. 
Result so far: 9286.0
Subtract 414 from 471 to 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.

Going ahead to step 7:
69 goes into 570 8 times with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 9286.8
Subtract 552 from 570 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 8:
If we divide 180 by 69, we get 2 and a remainder of 42.
The number 2 becomes the next digit in our result. 
Result so far: 9286.82
Subtracting 138 from 180 leaves us with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 9:
69 goes into 420 6 times with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 9286.826
The remainder is 6 after subtracting 414 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
69 goes into 60 0 times with a remainder of 60.
The next digit of our result is 0. 
Result so far: 9286.826
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 11:
69 goes into 600 8 times with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 9286.82608
The remainder is 48 after subtracting 552 from 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 12:
If we divide 480 by 69, we get 6 and a remainder of 66.
The next digit of our result is 6. 
Result so far: 9286.826086
Subtracting 414 from 480 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 13:
When dividing 660 by 69, we get 9 with a remainder of 39.
Write down 9 as next digit of the result. 
Result so far: 9286.8260869
Subtracting 621 from 660 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Going ahead to step 14:
The number 69 fits into 390 5 times, leaving a remainder of 45.
The number 5 becomes the next digit in our result. 
Result so far: 9286.82608695
If we subtract 345 from 390, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

The final outcome is 9286.82608695, with a leftover of 4.5e-08.