We look at the division of 818586 by 70 
The aim is to understand the frequency of 70 in 818586.

Advancing to step 1:
If we divide 8 by 70, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 70

Let's proceed to step 2:
81 divided by 70 is 1 with a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we take 70 away from 81, we end up with 11.
Fetch the next digit (8) from the dividend, attach it to 11 and continue: 118 / 70

Step 3:
If we divide 118 by 70, we get 1 and a remainder of 48.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we take 70 away from 118, we end up with 48.
Grab the next digit (5) from the dividend, add it to 48, then carry on: 485 / 70

Advancing to step 4:
The number 70 fits into 485 6 times, leaving a remainder of 65.
Use 6 as the next digit of our solution. 
Result so far: 116.0
Subtract 420 from 485 to get 65.
Bring next digit (8) of the dividend behind the 65 and repeat the process: 658 / 70

Step 5:
70 goes into 658 9 times with a remainder of 28.
Record the quotient 9 as the next digit in the result. 
Result so far: 1169.0
Deduct 630 from 658 and we're left with 28.
Bring next digit (6) of the dividend behind the 28 and repeat the process: 286 / 70

Step 6:
If we divide 286 by 70, we get 4 and a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 11694.0
If we subtract 280 from 286, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 7:
When dividing 60 by 70, we get 0 with a remainder of 60.
Write down 0 as next digit of the result. 
Result so far: 11694.0
Deduct 0 from 60 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 8:
The number 70 fits into 600 8 times, leaving a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 11694.08
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.

Let's proceed to step 9:
When dividing 400 by 70, we get 5 with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 11694.085
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:
If we divide 500 by 70, we get 7 and a remainder of 10.
Use 7 as the next digit of our solution. 
Result so far: 11694.0857
The remainder is 10 after subtracting 490 from 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 11:
100 divided by 70 is 1 with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 11694.08571
Subtracting 70 from 100 leaves us 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.

On to step 12:
70 goes into 300 4 times with a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 11694.085714
Subtracting 280 from 300 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 13:
200 divided by 70 is 2 with a remainder of 60.
Record the quotient 2 as the next digit in the result. 
Result so far: 11694.0857142
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:
If we divide 600 by 70, we get 8 and a remainder of 40.
Put 8 as the next digit of the answer. 
Result so far: 11694.08571428
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.

The final result is 11694.08571428 with a remainder of 4e-08.