646693 ÷ 79 
We want to divide 646693 by 79.

Let's proceed to step 1:
79 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 79

Moving on to step 2:
When dividing 64 by 79, we get 0 with a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 64, we end up with 64.
Append the next digit (6) from the dividend to 64 and continue with: 646 / 79

Moving on to step 3:
79 can be fit into 646 8 times, resulting in a remainder of 14.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 14 after subtracting 632 from 646.
Fetch the next digit (6) from the dividend, attach it to 14 and continue: 146 / 79

Moving on to step 4:
The number 79 fits into 146 1 times, leaving a remainder of 67.
Write down 1 as next digit of the result. 
Result so far: 81.0
If we take 79 away from 146, we end up with 67.
Bring next digit (9) of the dividend behind the 67 and repeat the process: 679 / 79

Advancing to step 5:
79 goes into 679 8 times with a remainder of 47.
Write down 8 as next digit of the result. 
Result so far: 818.0
If we take 632 away from 679, we end up with 47.
Grab the next digit (3) from the dividend, add it to 47, then carry on: 473 / 79

Step 6:
The number 79 fits into 473 5 times, leaving a remainder of 78.
The number 5 becomes the next digit in our result. 
Result so far: 8185.0
If we subtract 395 from 473, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 7:
When dividing 780 by 79, we get 9 with a remainder of 69.
Put 9 as the next digit of the answer. 
Result so far: 8185.9
Subtracting 711 from 780 leaves us with 69.
Since there are no more digits in the dividend, we add a zero to the remainder making it 690, and continue the process.

Let's proceed to step 8:
When dividing 690 by 79, we get 8 with a remainder of 58.
Put 8 as the next digit of the answer. 
Result so far: 8185.98
The remainder is 58 after subtracting 632 from 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 9:
If we divide 580 by 79, we get 7 and a remainder of 27.
Record the quotient 7 as the next digit in the result. 
Result so far: 8185.987
Subtract 553 from 580 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Step 10:
If we divide 270 by 79, we get 3 and a remainder of 33.
The number 3 becomes the next digit in our result. 
Result so far: 8185.9873
Subtracting 237 from 270 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 11:
79 can be fit into 330 4 times, resulting in a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 8185.98734
The remainder is 14 after subtracting 316 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Let's proceed to step 12:
When dividing 140 by 79, we get 1 with a remainder of 61.
Use 1 as the next digit of our solution. 
Result so far: 8185.987341
If we take 79 away from 140, we end up with 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 13:
If we divide 610 by 79, we get 7 and a remainder of 57.
Put 7 as the next digit of the answer. 
Result so far: 8185.9873417
If we take 553 away from 610, we end up with 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 14:
79 can be fit into 570 7 times, resulting in a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 8185.98734177
Subtracting 553 from 570 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

After the division, we end up with 8185.98734177 and a remainder of 1.7e-08.