812039 ÷ 70 
The aim is to understand the frequency of 70 in 812039.

On to step 1:
If we divide 8 by 70, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
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:
70 goes into 81 1 times with a remainder of 11.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 70 from 81 leaves us with 11.
Bring next digit (2) of the dividend behind the 11 and repeat the process: 112 / 70

Moving on to step 3:
When dividing 112 by 70, we get 1 with a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtract 70 from 112 to get 42.
Append the next digit (0) from the dividend to 42 and continue with: 420 / 70

Going ahead to step 4:
When dividing 420 by 70, we get 6 with a remainder of 0.
Record the quotient 6 as the next digit in the result. 
Result so far: 116.0
If we take 420 away from 420, we end up with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 70

On to step 5:
The number 70 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 1160.0
If we take 0 away from 3, we end up with 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 70

Going ahead to step 6:
If we divide 39 by 70, we get 0 and a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 11600.0
If we take 0 away from 39, we end up with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Advancing to step 7:
If we divide 390 by 70, we get 5 and a remainder of 40.
The number 5 becomes the next digit in our result. 
Result so far: 11600.5
Subtract 350 from 390 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.

Going ahead to step 8:
70 goes into 400 5 times with a remainder of 50.
Use 5 as the next digit of our solution. 
Result so far: 11600.55
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.

The final outcome is 11600.55, with a leftover of 0.05.