We look at the division of 631743 by 70 
The aim is to understand the frequency of 70 in 631743.

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
If we take 0 away from 63, we end up with 63.
Append the next digit (1) from the dividend to 63 and continue with: 631 / 70

Moving on to step 3:
The number 70 fits into 631 9 times, leaving a remainder of 1.
The next digit of our result is 9. 
Result so far: 9.0
If we take 630 away from 631, we end up with 1.
Grab the next digit (7) from the dividend, add it to 1, then carry on: 17 / 70

Going ahead to step 4:
When dividing 17 by 70, we get 0 with a remainder of 17.
The next digit of our result is 0. 
Result so far: 90.0
Subtract 0 from 17 to get 17.
Bring next digit (4) of the dividend behind the 17 and repeat the process: 174 / 70

Advancing to step 5:
When dividing 174 by 70, we get 2 with a remainder of 34.
Record the quotient 2 as the next digit in the result. 
Result so far: 902.0
The remainder is 34 after subtracting 140 from 174.
Fetch the next digit (3) from the dividend, attach it to 34 and continue: 343 / 70

Moving on to step 6:
70 can be fit into 343 4 times, resulting in a remainder of 63.
Put 4 as the next digit of the answer. 
Result so far: 9024.0
Subtract 280 from 343 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 7:
70 can be fit into 630 9 times, resulting in a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 9024.9
The remainder is 0 after subtracting 630 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
70 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 9024.9
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 9:
70 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 9024.9
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 9024.9, with a leftover of 0.0.