49021519 divided by 748 
The aim is to understand the frequency of 748 in 49021519.

Let's proceed to step 1:
748 can be fit into 4 0 times, resulting in a remainder of 4.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Fetch the next digit (9) from the dividend, attach it to 4 and continue: 49 / 748

Let's proceed to step 2:
The number 748 fits into 49 0 times, leaving a remainder of 49.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 49 after subtracting 0 from 49.
Grab the next digit (0) from the dividend, add it to 49, then carry on: 490 / 748

Step 3:
When dividing 490 by 748, we get 0 with a remainder of 490.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 490 to get 490.
Take the next digit (2) from the dividend and append it to 490, then repeat: 4902 / 748

On to step 4:
748 goes into 4902 6 times with a remainder of 414.
Put 6 as the next digit of the answer. 
Result so far: 6.0
The remainder is 414 after subtracting 4488 from 4902.
Append the next digit (1) from the dividend to 414 and continue with: 4141 / 748

Step 5:
When dividing 4141 by 748, we get 5 with a remainder of 401.
The next digit of our result is 5. 
Result so far: 65.0
Deduct 3740 from 4141 and we're left with 401.
Fetch the next digit (5) from the dividend, attach it to 401 and continue: 4015 / 748

Going ahead to step 6:
748 goes into 4015 5 times with a remainder of 275.
Record the quotient 5 as the next digit in the result. 
Result so far: 655.0
Subtract 3740 from 4015 to get 275.
Grab the next digit (1) from the dividend, add it to 275, then carry on: 2751 / 748

Moving on to step 7:
748 can be fit into 2751 3 times, resulting in a remainder of 507.
Put 3 as the next digit of the answer. 
Result so far: 6553.0
If we subtract 2244 from 2751, we get 507.
Fetch the next digit (9) from the dividend, attach it to 507 and continue: 5079 / 748

Moving on to step 8:
748 goes into 5079 6 times with a remainder of 591.
The next digit of our result is 6. 
Result so far: 65536.0
The remainder is 591 after subtracting 4488 from 5079.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5910, and continue the process.

Advancing to step 9:
When dividing 5910 by 748, we get 7 with a remainder of 674.
Put 7 as the next digit of the answer. 
Result so far: 65536.7
If we subtract 5236 from 5910, we get 674.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6740, and continue the process.

Going ahead to step 10:
748 goes into 6740 9 times with a remainder of 8.
Put 9 as the next digit of the answer. 
Result so far: 65536.79
If we subtract 6732 from 6740, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 11:
748 goes into 80 0 times with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 65536.79
The remainder is 80 after subtracting 0 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 12:
800 divided by 748 is 1 with a remainder of 52.
The number 1 becomes the next digit in our result. 
Result so far: 65536.7901
If we subtract 748 from 800, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Moving on to step 13:
If we divide 520 by 748, we get 0 and a remainder of 520.
Use 0 as the next digit of our solution. 
Result so far: 65536.7901
Subtracting 0 from 520 leaves us with 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Step 14:
748 can be fit into 5200 6 times, resulting in a remainder of 712.
The next digit of our result is 6. 
Result so far: 65536.790106
If we take 4488 away from 5200, we end up with 712.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7120, and continue the process.

Moving on to step 15:
748 goes into 7120 9 times with a remainder of 388.
The next digit of our result is 9. 
Result so far: 65536.7901069
Subtract 6732 from 7120 to get 388.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Going ahead to step 16:
3880 divided by 748 is 5 with a remainder of 140.
Record the quotient 5 as the next digit in the result. 
Result so far: 65536.79010695
If we take 3740 away from 3880, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Our division results in 65536.79010695 with a remaining 1.4e-07.