645068 divided by 79 
The aim is to understand the frequency of 79 in 645068.

Moving on to step 1:
If we divide 6 by 79, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 79

On to step 2:
The number 79 fits into 64 0 times, leaving a remainder of 64.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 64, we get 64.
Fetch the next digit (5) from the dividend, attach it to 64 and continue: 645 / 79

Let's proceed to step 3:
79 can be fit into 645 8 times, resulting in a remainder of 13.
Record the quotient 8 as the next digit in the result. 
Result so far: 8.0
If we take 632 away from 645, we end up with 13.
Fetch the next digit (0) from the dividend, attach it to 13 and continue: 130 / 79

On to step 4:
If we divide 130 by 79, we get 1 and a remainder of 51.
The next digit of our result is 1. 
Result so far: 81.0
Deduct 79 from 130 and we're left with 51.
Fetch the next digit (6) from the dividend, attach it to 51 and continue: 516 / 79

Advancing to step 5:
79 can be fit into 516 6 times, resulting in a remainder of 42.
Record the quotient 6 as the next digit in the result. 
Result so far: 816.0
Subtracting 474 from 516 leaves us with 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 79

Advancing to step 6:
428 divided by 79 is 5 with a remainder of 33.
Use 5 as the next digit of our solution. 
Result so far: 8165.0
Deduct 395 from 428 and we're left 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.

Let's proceed to step 7:
If we divide 330 by 79, we get 4 and a remainder of 14.
Use 4 as the next digit of our solution. 
Result so far: 8165.4
Deduct 316 from 330 and we're left 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.

Let's proceed to step 8:
140 divided by 79 is 1 with a remainder of 61.
The next digit of our result is 1. 
Result so far: 8165.41
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.

On to step 9:
The number 79 fits into 610 7 times, leaving a remainder of 57.
The next digit of our result is 7. 
Result so far: 8165.417
If we subtract 553 from 610, 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.

Going ahead to step 10:
If we divide 570 by 79, we get 7 and a remainder of 17.
The number 7 becomes the next digit in our result. 
Result so far: 8165.4177
The remainder is 17 after subtracting 553 from 570.
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 8165.4177 and a remainder of 0.00017.