We divide 68028848 by 646
The aim is to understand the frequency of 646 in 68028848.

Moving on to step 1:
If we divide 6 by 646, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 646

Moving on to step 2:
646 can be fit into 68 0 times, resulting in a remainder of 68.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 68 to get 68.
Append the next digit (0) from the dividend to 68 and continue with: 680 / 646

Advancing to step 3:
The number 646 fits into 680 1 times, leaving a remainder of 34.
Use 1 as the next digit of our solution. 
Result so far: 1.0
The remainder is 34 after subtracting 646 from 680.
Bring next digit (2) of the dividend behind the 34 and repeat the process: 342 / 646

Moving on to step 4:
646 goes into 342 0 times with a remainder of 342.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 342, we get 342.
Bring next digit (8) of the dividend behind the 342 and repeat the process: 3428 / 646

On to step 5:
646 goes into 3428 5 times with a remainder of 198.
Write down 5 as next digit of the result. 
Result so far: 105.0
The remainder is 198 after subtracting 3230 from 3428.
Fetch the next digit (8) from the dividend, attach it to 198 and continue: 1988 / 646

Step 6:
If we divide 1988 by 646, we get 3 and a remainder of 50.
Put 3 as the next digit of the answer. 
Result so far: 1053.0
Subtract 1938 from 1988 to get 50.
Append the next digit (4) from the dividend to 50 and continue with: 504 / 646

Step 7:
646 goes into 504 0 times with a remainder of 504.
Use 0 as the next digit of our solution. 
Result so far: 10530.0
Subtract 0 from 504 to get 504.
Append the next digit (8) from the dividend to 504 and continue with: 5048 / 646

Step 8:
If we divide 5048 by 646, we get 7 and a remainder of 526.
Record the quotient 7 as the next digit in the result. 
Result so far: 105307.0
Deduct 4522 from 5048 and we're left with 526.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5260, and continue the process.

Step 9:
646 can be fit into 5260 8 times, resulting in a remainder of 92.
Put 8 as the next digit of the answer. 
Result so far: 105307.8
Deduct 5168 from 5260 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Step 10:
When dividing 920 by 646, we get 1 with a remainder of 274.
Use 1 as the next digit of our solution. 
Result so far: 105307.81
Subtracting 646 from 920 leaves us with 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Step 11:
If we divide 2740 by 646, we get 4 and a remainder of 156.
The next digit of our result is 4. 
Result so far: 105307.814
If we take 2584 away from 2740, we end up with 156.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1560, and continue the process.

Let's proceed to step 12:
The number 646 fits into 1560 2 times, leaving a remainder of 268.
Use 2 as the next digit of our solution. 
Result so far: 105307.8142
The remainder is 268 after subtracting 1292 from 1560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Advancing to step 13:
When dividing 2680 by 646, we get 4 with a remainder of 96.
Record the quotient 4 as the next digit in the result. 
Result so far: 105307.81424
Deduct 2584 from 2680 and we're left with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 14:
960 divided by 646 is 1 with a remainder of 314.
Put 1 as the next digit of the answer. 
Result so far: 105307.814241
Subtract 646 from 960 to get 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Going ahead to step 15:
If we divide 3140 by 646, we get 4 and a remainder of 556.
Write down 4 as next digit of the result. 
Result so far: 105307.8142414
Deduct 2584 from 3140 and we're left with 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Advancing to step 16:
5560 divided by 646 is 8 with a remainder of 392.
Record the quotient 8 as the next digit in the result. 
Result so far: 105307.81424148
If we take 5168 away from 5560, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

After the division, we end up with 105307.81424148 and a remainder of 3.92e-07.