We look at the division of 39949251 by 744 
The aim is to understand the frequency of 744 in 39949251.

Moving on to step 1:
The number 744 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 3 after subtracting 0 from 3.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 744

Moving on to step 2:
If we divide 39 by 744, we get 0 and a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 39 and we're left with 39.
Fetch the next digit (9) from the dividend, attach it to 39 and continue: 399 / 744

Going ahead to step 3:
The number 744 fits into 399 0 times, leaving a remainder of 399.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 399 leaves us with 399.
Bring next digit (4) of the dividend behind the 399 and repeat the process: 3994 / 744

On to step 4:
When dividing 3994 by 744, we get 5 with a remainder of 274.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 3720 from 3994 leaves us with 274.
Append the next digit (9) from the dividend to 274 and continue with: 2749 / 744

Advancing to step 5:
744 goes into 2749 3 times with a remainder of 517.
The number 3 becomes the next digit in our result. 
Result so far: 53.0
Subtracting 2232 from 2749 leaves us with 517.
Append the next digit (2) from the dividend to 517 and continue with: 5172 / 744

Advancing to step 6:
The number 744 fits into 5172 6 times, leaving a remainder of 708.
Record the quotient 6 as the next digit in the result. 
Result so far: 536.0
Subtracting 4464 from 5172 leaves us with 708.
Fetch the next digit (5) from the dividend, attach it to 708 and continue: 7085 / 744

On to step 7:
744 can be fit into 7085 9 times, resulting in a remainder of 389.
Record the quotient 9 as the next digit in the result. 
Result so far: 5369.0
The remainder is 389 after subtracting 6696 from 7085.
Take the next digit (1) from the dividend and append it to 389, then repeat: 3891 / 744

Advancing to step 8:
744 goes into 3891 5 times with a remainder of 171.
The number 5 becomes the next digit in our result. 
Result so far: 53695.0
Deduct 3720 from 3891 and we're left with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

On to step 9:
744 goes into 1710 2 times with a remainder of 222.
The next digit of our result is 2. 
Result so far: 53695.2
If we take 1488 away from 1710, we end up with 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Step 10:
When dividing 2220 by 744, we get 2 with a remainder of 732.
Put 2 as the next digit of the answer. 
Result so far: 53695.22
If we take 1488 away from 2220, we end up with 732.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

After the division, we end up with 53695.22 and a remainder of 0.732.