66169363 ÷ 79 
The aim is to understand the frequency of 79 in 66169363.

Step 1:
6 divided by 79 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 79

On to step 2:
When dividing 66 by 79, we get 0 with a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Bring next digit (1) of the dividend behind the 66 and repeat the process: 661 / 79

Step 3:
If we divide 661 by 79, we get 8 and a remainder of 29.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 632 away from 661, we end up with 29.
Grab the next digit (6) from the dividend, add it to 29, then carry on: 296 / 79

Moving on to step 4:
When dividing 296 by 79, we get 3 with a remainder of 59.
Use 3 as the next digit of our solution. 
Result so far: 83.0
Subtracting 237 from 296 leaves us with 59.
Take the next digit (9) from the dividend and append it to 59, then repeat: 599 / 79

Going ahead to step 5:
The number 79 fits into 599 7 times, leaving a remainder of 46.
Write down 7 as next digit of the result. 
Result so far: 837.0
The remainder is 46 after subtracting 553 from 599.
Grab the next digit (3) from the dividend, add it to 46, then carry on: 463 / 79

Going ahead to step 6:
When dividing 463 by 79, we get 5 with a remainder of 68.
The number 5 becomes the next digit in our result. 
Result so far: 8375.0
Deduct 395 from 463 and we're left with 68.
Include the next digit (6) from the dividend after 68, then repeat: 686 / 79

Going ahead to step 7:
When dividing 686 by 79, we get 8 with a remainder of 54.
Put 8 as the next digit of the answer. 
Result so far: 83758.0
Deduct 632 from 686 and we're left with 54.
Bring next digit (3) of the dividend behind the 54 and repeat the process: 543 / 79

Let's proceed to step 8:
79 can be fit into 543 6 times, resulting in a remainder of 69.
The number 6 becomes the next digit in our result. 
Result so far: 837586.0
Subtracting 474 from 543 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.

Step 9:
690 divided by 79 is 8 with a remainder of 58.
Record the quotient 8 as the next digit in the result. 
Result so far: 837586.8
If we subtract 632 from 690, we get 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Moving on to step 10:
The number 79 fits into 580 7 times, leaving a remainder of 27.
Put 7 as the next digit of the answer. 
Result so far: 837586.87
The remainder is 27 after subtracting 553 from 580.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 11:
When dividing 270 by 79, we get 3 with a remainder of 33.
Write down 3 as next digit of the result. 
Result so far: 837586.873
If we subtract 237 from 270, we get 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

On to step 12:
If we divide 330 by 79, we get 4 and a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 837586.8734
Subtracting 316 from 330 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 13:
79 can be fit into 140 1 times, resulting in a remainder of 61.
The next digit of our result is 1. 
Result so far: 837586.87341
Subtract 79 from 140 to get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Step 14:
The number 79 fits into 610 7 times, leaving a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 837586.873417
The remainder is 57 after subtracting 553 from 610.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 15:
570 divided by 79 is 7 with a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 837586.8734177
Deduct 553 from 570 and we're left 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.

The quotient of the division is 837586.8734177, and the remainder is 1.7e-07.