We're dividing 821589 by 70 
The aim is to understand the frequency of 70 in 821589.

Going ahead to step 1:
8 divided by 70 is 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Fetch the next digit (2) from the dividend, attach it to 8 and continue: 82 / 70

On to step 2:
The number 70 fits into 82 1 times, leaving a remainder of 12.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Deduct 70 from 82 and we're left with 12.
Bring next digit (1) of the dividend behind the 12 and repeat the process: 121 / 70

Step 3:
If we divide 121 by 70, we get 1 and a remainder of 51.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtracting 70 from 121 leaves us with 51.
Grab the next digit (5) from the dividend, add it to 51, then carry on: 515 / 70

Going ahead to step 4:
If we divide 515 by 70, we get 7 and a remainder of 25.
Write down 7 as next digit of the result. 
Result so far: 117.0
Subtracting 490 from 515 leaves us with 25.
Fetch the next digit (8) from the dividend, attach it to 25 and continue: 258 / 70

Step 5:
If we divide 258 by 70, we get 3 and a remainder of 48.
Write down 3 as next digit of the result. 
Result so far: 1173.0
Subtract 210 from 258 to get 48.
Grab the next digit (9) from the dividend, add it to 48, then carry on: 489 / 70

Advancing to step 6:
489 divided by 70 is 6 with a remainder of 69.
Write down 6 as next digit of the result. 
Result so far: 11736.0
If we take 420 away from 489, we end up 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 7:
70 goes into 690 9 times with a remainder of 60.
Use 9 as the next digit of our solution. 
Result so far: 11736.9
If we subtract 630 from 690, we get 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 8:
70 goes into 600 8 times with a remainder of 40.
The next digit of our result is 8. 
Result so far: 11736.98
Subtract 560 from 600 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 9:
When dividing 400 by 70, we get 5 with a remainder of 50.
Record the quotient 5 as the next digit in the result. 
Result so far: 11736.985
The remainder is 50 after subtracting 350 from 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 10:
When dividing 500 by 70, we get 7 with a remainder of 10.
The number 7 becomes the next digit in our result. 
Result so far: 11736.9857
Subtracting 490 from 500 leaves us with 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:
When dividing 100 by 70, we get 1 with a remainder of 30.
The next digit of our result is 1. 
Result so far: 11736.98571
If we take 70 away from 100, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 12:
70 can be fit into 300 4 times, resulting in a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 11736.985714
The remainder is 20 after subtracting 280 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 13:
If we divide 200 by 70, we get 2 and a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 11736.9857142
The remainder is 60 after subtracting 140 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 14:
600 divided by 70 is 8 with a remainder of 40.
Use 8 as the next digit of our solution. 
Result so far: 11736.98571428
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final result is 11736.98571428 with a remainder of 4e-08.