We look at the division of 15891144 by 744 
The aim is to understand the frequency of 744 in 15891144.

On to step 1:
744 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 744

Let's proceed to step 2:
15 divided by 744 is 0 with a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 744

Step 3:
744 goes into 158 0 times with a remainder of 158.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 158 after subtracting 0 from 158.
Take the next digit (9) from the dividend and append it to 158, then repeat: 1589 / 744

Advancing to step 4:
744 goes into 1589 2 times with a remainder of 101.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtract 1488 from 1589 to get 101.
Append the next digit (1) from the dividend to 101 and continue with: 1011 / 744

Advancing to step 5:
744 can be fit into 1011 1 times, resulting in a remainder of 267.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we take 744 away from 1011, we end up with 267.
Take the next digit (1) from the dividend and append it to 267, then repeat: 2671 / 744

Let's proceed to step 6:
744 can be fit into 2671 3 times, resulting in a remainder of 439.
Use 3 as the next digit of our solution. 
Result so far: 213.0
The remainder is 439 after subtracting 2232 from 2671.
Append the next digit (4) from the dividend to 439 and continue with: 4394 / 744

Moving on to step 7:
744 can be fit into 4394 5 times, resulting in a remainder of 674.
Put 5 as the next digit of the answer. 
Result so far: 2135.0
Subtracting 3720 from 4394 leaves us with 674.
Fetch the next digit (4) from the dividend, attach it to 674 and continue: 6744 / 744

Moving on to step 8:
When dividing 6744 by 744, we get 9 with a remainder of 48.
Write down 9 as next digit of the result. 
Result so far: 21359.0
Subtract 6696 from 6744 to get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 9:
The number 744 fits into 480 0 times, leaving a remainder of 480.
Use 0 as the next digit of our solution. 
Result so far: 21359.0
Subtract 0 from 480 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Let's proceed to step 10:
The number 744 fits into 4800 6 times, leaving a remainder of 336.
The next digit of our result is 6. 
Result so far: 21359.06
If we subtract 4464 from 4800, we get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Going ahead to step 11:
When dividing 3360 by 744, we get 4 with a remainder of 384.
The number 4 becomes the next digit in our result. 
Result so far: 21359.064
Subtract 2976 from 3360 to get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Moving on to step 12:
3840 divided by 744 is 5 with a remainder of 120.
The number 5 becomes the next digit in our result. 
Result so far: 21359.0645
Subtracting 3720 from 3840 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

On to step 13:
The number 744 fits into 1200 1 times, leaving a remainder of 456.
Use 1 as the next digit of our solution. 
Result so far: 21359.06451
Deduct 744 from 1200 and we're left with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Step 14:
744 goes into 4560 6 times with a remainder of 96.
Record the quotient 6 as the next digit in the result. 
Result so far: 21359.064516
If we subtract 4464 from 4560, we get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Moving on to step 15:
744 can be fit into 960 1 times, resulting in a remainder of 216.
The next digit of our result is 1. 
Result so far: 21359.0645161
Deduct 744 from 960 and we're left with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Advancing to step 16:
744 can be fit into 2160 2 times, resulting in a remainder of 672.
Put 2 as the next digit of the answer. 
Result so far: 21359.06451612
If we subtract 1488 from 2160, we get 672.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6720, and continue the process.

The quotient of the division is 21359.06451612, and the remainder is 6.72e-07.