691604 ÷ 79 
We want to figure out the number of times 691604 can be divided by 79.

Step 1:
When dividing 6 by 79, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Grab the next digit (9) from the dividend, add it to 6, then carry on: 69 / 79

Advancing to step 2:
79 goes into 69 0 times with a remainder of 69.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 69 to get 69.
Append the next digit (1) from the dividend to 69 and continue with: 691 / 79

Moving on to step 3:
When dividing 691 by 79, we get 8 with a remainder of 59.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 632 from 691 leaves us with 59.
Take the next digit (6) from the dividend and append it to 59, then repeat: 596 / 79

Moving on to step 4:
The number 79 fits into 596 7 times, leaving a remainder of 43.
Record the quotient 7 as the next digit in the result. 
Result so far: 87.0
Deduct 553 from 596 and we're left with 43.
Bring next digit (0) of the dividend behind the 43 and repeat the process: 430 / 79

On to step 5:
The number 79 fits into 430 5 times, leaving a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 875.0
If we take 395 away from 430, we end up with 35.
Append the next digit (4) from the dividend to 35 and continue with: 354 / 79

Let's proceed to step 6:
79 goes into 354 4 times with a remainder of 38.
The next digit of our result is 4. 
Result so far: 8754.0
The remainder is 38 after subtracting 316 from 354.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Going ahead to step 7:
380 divided by 79 is 4 with a remainder of 64.
Write down 4 as next digit of the result. 
Result so far: 8754.4
The remainder is 64 after subtracting 316 from 380.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 8:
When dividing 640 by 79, we get 8 with a remainder of 8.
Put 8 as the next digit of the answer. 
Result so far: 8754.48
If we subtract 632 from 640, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 9:
80 divided by 79 is 1 with a remainder of 1.
The number 1 becomes the next digit in our result. 
Result so far: 8754.481
Subtract 79 from 80 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Step 10:
79 goes into 10 0 times with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 8754.481
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 11:
The number 79 fits into 100 1 times, leaving a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 8754.48101
Subtracting 79 from 100 leaves us with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 12:
79 can be fit into 210 2 times, resulting in a remainder of 52.
Use 2 as the next digit of our solution. 
Result so far: 8754.481012
The remainder is 52 after subtracting 158 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 13:
When dividing 520 by 79, we get 6 with a remainder of 46.
Put 6 as the next digit of the answer. 
Result so far: 8754.4810126
The remainder is 46 after subtracting 474 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 14:
79 goes into 460 5 times with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 8754.48101265
Deduct 395 from 460 and we're left with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The quotient of the division is 8754.48101265, and the remainder is 6.5e-08.