Let's divide 639480 by 70
The aim is to understand the frequency of 70 in 639480.

Going ahead to step 1:
70 goes into 6 0 times with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 70

On to step 2:
If we divide 63 by 70, we get 0 and a remainder of 63.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 63 and we're left with 63.
Include the next digit (9) from the dividend after 63, then repeat: 639 / 70

On to step 3:
If we divide 639 by 70, we get 9 and a remainder of 9.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 630 from 639 and we're left with 9.
Take the next digit (4) from the dividend and append it to 9, then repeat: 94 / 70

Moving on to step 4:
70 goes into 94 1 times with a remainder of 24.
The number 1 becomes the next digit in our result. 
Result so far: 91.0
Subtracting 70 from 94 leaves us with 24.
Take the next digit (8) from the dividend and append it to 24, then repeat: 248 / 70

Going ahead to step 5:
When dividing 248 by 70, we get 3 with a remainder of 38.
The number 3 becomes the next digit in our result. 
Result so far: 913.0
If we take 210 away from 248, we end up with 38.
Bring next digit (0) of the dividend behind the 38 and repeat the process: 380 / 70

Advancing to step 6:
70 goes into 380 5 times with a remainder of 30.
The next digit of our result is 5. 
Result so far: 9135.0
The remainder is 30 after subtracting 350 from 380.
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 7:
300 divided by 70 is 4 with a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 9135.4
Deduct 280 from 300 and we're left 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.

Step 8:
70 can be fit into 200 2 times, resulting in a remainder of 60.
The next digit of our result is 2. 
Result so far: 9135.42
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.

Advancing to step 9:
70 can be fit into 600 8 times, resulting in a remainder of 40.
The number 8 becomes the next digit in our result. 
Result so far: 9135.428
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 10:
70 goes into 400 5 times with a remainder of 50.
The next digit of our result is 5. 
Result so far: 9135.4285
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.

On to step 11:
When dividing 500 by 70, we get 7 with a remainder of 10.
The next digit of our result is 7. 
Result so far: 9135.42857
If we take 490 away from 500, we end up 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.

Moving on to step 12:
100 divided by 70 is 1 with a remainder of 30.
Use 1 as the next digit of our solution. 
Result so far: 9135.428571
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.

Moving on to step 13:
If we divide 300 by 70, we get 4 and a remainder of 20.
Put 4 as the next digit of the answer. 
Result so far: 9135.4285714
If we take 280 away from 300, we end up 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.

Step 14:
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: 9135.42857142
If we subtract 140 from 200, 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.

The final result is 9135.42857142 with a remainder of 6e-08.