We're dividing 2448850 by 646 
The aim is to understand the frequency of 646 in 2448850.

Let's proceed to step 1:
646 goes into 2 0 times with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 646

Step 2:
646 can be fit into 24 0 times, resulting in a remainder of 24.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 24 and we're left with 24.
Grab the next digit (4) from the dividend, add it to 24, then carry on: 244 / 646

Going ahead to step 3:
The number 646 fits into 244 0 times, leaving a remainder of 244.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 244 to get 244.
Fetch the next digit (8) from the dividend, attach it to 244 and continue: 2448 / 646

Advancing to step 4:
If we divide 2448 by 646, we get 3 and a remainder of 510.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 1938 from 2448 leaves us with 510.
Take the next digit (8) from the dividend and append it to 510, then repeat: 5108 / 646

Moving on to step 5:
The number 646 fits into 5108 7 times, leaving a remainder of 586.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
Subtracting 4522 from 5108 leaves us with 586.
Fetch the next digit (5) from the dividend, attach it to 586 and continue: 5865 / 646

Advancing to step 6:
5865 divided by 646 is 9 with a remainder of 51.
The number 9 becomes the next digit in our result. 
Result so far: 379.0
Subtract 5814 from 5865 to get 51.
Fetch the next digit (0) from the dividend, attach it to 51 and continue: 510 / 646

Moving on to step 7:
510 divided by 646 is 0 with a remainder of 510.
The number 0 becomes the next digit in our result. 
Result so far: 3790.0
If we take 0 away from 510, we end up with 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5100, and continue the process.

Advancing to step 8:
5100 divided by 646 is 7 with a remainder of 578.
Record the quotient 7 as the next digit in the result. 
Result so far: 3790.7
If we subtract 4522 from 5100, we get 578.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5780, and continue the process.

Advancing to step 9:
646 goes into 5780 8 times with a remainder of 612.
Put 8 as the next digit of the answer. 
Result so far: 3790.78
If we take 5168 away from 5780, we end up with 612.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6120, and continue the process.

Advancing to step 10:
If we divide 6120 by 646, we get 9 and a remainder of 306.
Write down 9 as next digit of the result. 
Result so far: 3790.789
The remainder is 306 after subtracting 5814 from 6120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3060, and continue the process.

Moving on to step 11:
The number 646 fits into 3060 4 times, leaving a remainder of 476.
Record the quotient 4 as the next digit in the result. 
Result so far: 3790.7894
Subtract 2584 from 3060 to get 476.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4760, and continue the process.

Going ahead to step 12:
646 can be fit into 4760 7 times, resulting in a remainder of 238.
Put 7 as the next digit of the answer. 
Result so far: 3790.78947
If we take 4522 away from 4760, we end up with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Let's proceed to step 13:
When dividing 2380 by 646, we get 3 with a remainder of 442.
The number 3 becomes the next digit in our result. 
Result so far: 3790.789473
Subtract 1938 from 2380 to get 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

Step 14:
When dividing 4420 by 646, we get 6 with a remainder of 544.
Use 6 as the next digit of our solution. 
Result so far: 3790.7894736
If we subtract 3876 from 4420, we get 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Going ahead to step 15:
When dividing 5440 by 646, we get 8 with a remainder of 272.
Record the quotient 8 as the next digit in the result. 
Result so far: 3790.78947368
If we take 5168 away from 5440, we end up with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

In conclusion, the division gives 3790.78947368 with a balance of 2.72e-07.