We divide 435421 by 70
The aim is to understand the frequency of 70 in 435421.

Going ahead to step 1:
If we divide 4 by 70, we get 0 and a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Include the next digit (3) from the dividend after 4, then repeat: 43 / 70

Going ahead to step 2:
If we divide 43 by 70, we get 0 and a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Take the next digit (5) from the dividend and append it to 43, then repeat: 435 / 70

Moving on to step 3:
When dividing 435 by 70, we get 6 with a remainder of 15.
Record the quotient 6 as the next digit in the result. 
Result so far: 6.0
The remainder is 15 after subtracting 420 from 435.
Take the next digit (4) from the dividend and append it to 15, then repeat: 154 / 70

Moving on to step 4:
If we divide 154 by 70, we get 2 and a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 62.0
The remainder is 14 after subtracting 140 from 154.
Include the next digit (2) from the dividend after 14, then repeat: 142 / 70

Advancing to step 5:
When dividing 142 by 70, we get 2 with a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 622.0
The remainder is 2 after subtracting 140 from 142.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 70

Going ahead to step 6:
70 can be fit into 21 0 times, resulting in a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 6220.0
Subtract 0 from 21 to get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 7:
70 goes into 210 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 6220.3
The remainder is 0 after subtracting 210 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing 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: 6220.3
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
70 goes into 0 0 times with a remainder of 0.
The next digit of our result is 0. 
Result so far: 6220.3
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 6220.3 and a remainder of 0.0.