We look at the division of 337645 by 70 
The aim is to understand the frequency of 70 in 337645.

Step 1:
3 divided by 70 is 0 with a remainder of 3.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 70

On to step 2:
When dividing 33 by 70, we get 0 with a remainder of 33.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 33 and we're left with 33.
Append the next digit (7) from the dividend to 33 and continue with: 337 / 70

Advancing to step 3:
When dividing 337 by 70, we get 4 with a remainder of 57.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 280 from 337 to get 57.
Fetch the next digit (6) from the dividend, attach it to 57 and continue: 576 / 70

Step 4:
70 can be fit into 576 8 times, resulting in a remainder of 16.
Put 8 as the next digit of the answer. 
Result so far: 48.0
If we subtract 560 from 576, we get 16.
Append the next digit (4) from the dividend to 16 and continue with: 164 / 70

Going ahead to step 5:
164 divided by 70 is 2 with a remainder of 24.
The number 2 becomes the next digit in our result. 
Result so far: 482.0
The remainder is 24 after subtracting 140 from 164.
Fetch the next digit (5) from the dividend, attach it to 24 and continue: 245 / 70

Let's proceed to step 6:
245 divided by 70 is 3 with a remainder of 35.
Record the quotient 3 as the next digit in the result. 
Result so far: 4823.0
Deduct 210 from 245 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 7:
If we divide 350 by 70, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 4823.5
If we take 350 away from 350, 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.

Going ahead to step 8:
70 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 4823.5
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.

Step 9:
If we divide 0 by 70, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 4823.5
Deduct 0 from 0 and we're left 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.

Our division results in 4823.5 with a remaining 0.0.