46282478 ÷ 645 
The aim is to understand the frequency of 645 in 46282478.

Advancing to step 1:
The number 645 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Append the next digit (6) from the dividend to 4 and continue with: 46 / 645

On to step 2:
When dividing 46 by 645, we get 0 with a remainder of 46.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 46 after subtracting 0 from 46.
Fetch the next digit (2) from the dividend, attach it to 46 and continue: 462 / 645

Let's proceed to step 3:
645 can be fit into 462 0 times, resulting in a remainder of 462.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 462 after subtracting 0 from 462.
Include the next digit (8) from the dividend after 462, then repeat: 4628 / 645

Going ahead to step 4:
When dividing 4628 by 645, we get 7 with a remainder of 113.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 4515 from 4628 to get 113.
Fetch the next digit (2) from the dividend, attach it to 113 and continue: 1132 / 645

Going ahead to step 5:
The number 645 fits into 1132 1 times, leaving a remainder of 487.
Put 1 as the next digit of the answer. 
Result so far: 71.0
Subtracting 645 from 1132 leaves us with 487.
Append the next digit (4) from the dividend to 487 and continue with: 4874 / 645

Let's proceed to step 6:
When dividing 4874 by 645, we get 7 with a remainder of 359.
Write down 7 as next digit of the result. 
Result so far: 717.0
If we take 4515 away from 4874, we end up with 359.
Take the next digit (7) from the dividend and append it to 359, then repeat: 3597 / 645

Moving on to step 7:
645 can be fit into 3597 5 times, resulting in a remainder of 372.
Write down 5 as next digit of the result. 
Result so far: 7175.0
Subtracting 3225 from 3597 leaves us with 372.
Append the next digit (8) from the dividend to 372 and continue with: 3728 / 645

Moving on to step 8:
If we divide 3728 by 645, we get 5 and a remainder of 503.
Record the quotient 5 as the next digit in the result. 
Result so far: 71755.0
The remainder is 503 after subtracting 3225 from 3728.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Advancing to step 9:
When dividing 5030 by 645, we get 7 with a remainder of 515.
Put 7 as the next digit of the answer. 
Result so far: 71755.7
The remainder is 515 after subtracting 4515 from 5030.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5150, and continue the process.

Let's proceed to step 10:
5150 divided by 645 is 7 with a remainder of 635.
The next digit of our result is 7. 
Result so far: 71755.77
Deduct 4515 from 5150 and we're left with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

The final result is 71755.77 with a remainder of 0.635.