3578629 divided by 607 
The aim is to understand the frequency of 607 in 3578629.

Step 1:
607 goes into 3 0 times with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 607

Moving on to step 2:
607 can be fit into 35 0 times, resulting in a remainder of 35.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 35 leaves us with 35.
Grab the next digit (7) from the dividend, add it to 35, then carry on: 357 / 607

Advancing to step 3:
The number 607 fits into 357 0 times, leaving a remainder of 357.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 357 after subtracting 0 from 357.
Take the next digit (8) from the dividend and append it to 357, then repeat: 3578 / 607

Let's proceed to step 4:
When dividing 3578 by 607, we get 5 with a remainder of 543.
Write down 5 as next digit of the result. 
Result so far: 5.0
Subtract 3035 from 3578 to get 543.
Append the next digit (6) from the dividend to 543 and continue with: 5436 / 607

Moving on to step 5:
5436 divided by 607 is 8 with a remainder of 580.
Write down 8 as next digit of the result. 
Result so far: 58.0
Deduct 4856 from 5436 and we're left with 580.
Append the next digit (2) from the dividend to 580 and continue with: 5802 / 607

Step 6:
607 can be fit into 5802 9 times, resulting in a remainder of 339.
Put 9 as the next digit of the answer. 
Result so far: 589.0
Deduct 5463 from 5802 and we're left with 339.
Fetch the next digit (9) from the dividend, attach it to 339 and continue: 3399 / 607

Moving on to step 7:
607 goes into 3399 5 times with a remainder of 364.
Record the quotient 5 as the next digit in the result. 
Result so far: 5895.0
The remainder is 364 after subtracting 3035 from 3399.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3640, and continue the process.

Advancing to step 8:
3640 divided by 607 is 5 with a remainder of 605.
Record the quotient 5 as the next digit in the result. 
Result so far: 5895.5
Subtract 3035 from 3640 to get 605.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6050, and continue the process.

Let's proceed to step 9:
If we divide 6050 by 607, we get 9 and a remainder of 587.
Record the quotient 9 as the next digit in the result. 
Result so far: 5895.59
Deduct 5463 from 6050 and we're left with 587.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5870, and continue the process.

Step 10:
607 can be fit into 5870 9 times, resulting in a remainder of 407.
The next digit of our result is 9. 
Result so far: 5895.599
Subtracting 5463 from 5870 leaves us with 407.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4070, and continue the process.

The final result is 5895.599 with a remainder of 0.0407.