We're dividing 305523 by 70 
The aim is to understand the frequency of 70 in 305523.

Advancing to step 1:
The number 70 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 70

Let's proceed to step 2:
The number 70 fits into 30 0 times, leaving a remainder of 30.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 30, we get 30.
Take the next digit (5) from the dividend and append it to 30, then repeat: 305 / 70

Advancing to step 3:
305 divided by 70 is 4 with a remainder of 25.
Put 4 as the next digit of the answer. 
Result so far: 4.0
Subtract 280 from 305 to get 25.
Take the next digit (5) from the dividend and append it to 25, then repeat: 255 / 70

Advancing to step 4:
255 divided by 70 is 3 with a remainder of 45.
The number 3 becomes the next digit in our result. 
Result so far: 43.0
Deduct 210 from 255 and we're left with 45.
Include the next digit (2) from the dividend after 45, then repeat: 452 / 70

Moving on to step 5:
70 can be fit into 452 6 times, resulting in a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 436.0
If we subtract 420 from 452, we get 32.
Append the next digit (3) from the dividend to 32 and continue with: 323 / 70

Going ahead to step 6:
323 divided by 70 is 4 with a remainder of 43.
The number 4 becomes the next digit in our result. 
Result so far: 4364.0
If we subtract 280 from 323, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Advancing to step 7:
70 can be fit into 430 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 4364.6
The remainder is 10 after subtracting 420 from 430.
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 8:
The number 70 fits into 100 1 times, leaving a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 4364.61
Deduct 70 from 100 and we're left 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.

Let's proceed to step 9:
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: 4364.614
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.

Advancing to step 10:
200 divided by 70 is 2 with a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 4364.6142
Subtract 140 from 200 to 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.

Step 11:
When dividing 600 by 70, we get 8 with a remainder of 40.
The next digit of our result is 8. 
Result so far: 4364.61428
Subtracting 560 from 600 leaves us 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.

Going ahead to step 12:
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: 4364.614285
If we take 350 away from 400, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 13:
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: 4364.6142857
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.

Advancing to step 14:
100 divided by 70 is 1 with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 4364.61428571
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.

The final result is 4364.61428571 with a remainder of 3e-08.