725439 ÷ 70 
The aim is to understand the frequency of 70 in 725439.

Step 1:
70 goes into 7 0 times with a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Take the next digit (2) from the dividend and append it to 7, then repeat: 72 / 70

Moving on to step 2:
When dividing 72 by 70, we get 1 with a remainder of 2.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 70 away from 72, we end up with 2.
Bring next digit (5) of the dividend behind the 2 and repeat the process: 25 / 70

Let's proceed to step 3:
25 divided by 70 is 0 with a remainder of 25.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 25, we get 25.
Append the next digit (4) from the dividend to 25 and continue with: 254 / 70

Let's proceed to step 4:
70 can be fit into 254 3 times, resulting in a remainder of 44.
The next digit of our result is 3. 
Result so far: 103.0
Deduct 210 from 254 and we're left with 44.
Append the next digit (3) from the dividend to 44 and continue with: 443 / 70

Let's proceed to step 5:
70 can be fit into 443 6 times, resulting in a remainder of 23.
Use 6 as the next digit of our solution. 
Result so far: 1036.0
Deduct 420 from 443 and we're left with 23.
Include the next digit (9) from the dividend after 23, then repeat: 239 / 70

Moving on to step 6:
239 divided by 70 is 3 with a remainder of 29.
The number 3 becomes the next digit in our result. 
Result so far: 10363.0
If we subtract 210 from 239, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
70 goes into 290 4 times with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 10363.4
Subtracting 280 from 290 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.

Let's proceed to step 8:
70 goes into 100 1 times with a remainder of 30.
Write down 1 as next digit of the result. 
Result so far: 10363.41
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.

Step 9:
70 can be fit into 300 4 times, resulting in a remainder of 20.
The number 4 becomes the next digit in our result. 
Result so far: 10363.414
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.

Let's proceed to step 10:
70 goes into 200 2 times with a remainder of 60.
Write down 2 as next digit of the result. 
Result so far: 10363.4142
Subtracting 140 from 200 leaves us 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.

Going ahead to step 11:
The number 70 fits into 600 8 times, leaving a remainder of 40.
The next digit of our result is 8. 
Result so far: 10363.41428
If we take 560 away from 600, we end up 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.

Moving on to step 12:
The number 70 fits into 400 5 times, leaving a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 10363.414285
If we subtract 350 from 400, we get 50.
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 13:
When dividing 500 by 70, we get 7 with a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 10363.4142857
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.

Going ahead to step 14:
70 goes into 100 1 times with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 10363.41428571
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.

The quotient of the division is 10363.41428571, and the remainder is 3e-08.