We look at the division of 19278921 by 731 
The aim is to understand the frequency of 731 in 19278921.

Going ahead to step 1:
731 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 731

Advancing to step 2:
731 can be fit into 19 0 times, resulting in a remainder of 19.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 19 to get 19.
Fetch the next digit (2) from the dividend, attach it to 19 and continue: 192 / 731

Let's proceed to step 3:
When dividing 192 by 731, we get 0 with a remainder of 192.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 192 to get 192.
Fetch the next digit (7) from the dividend, attach it to 192 and continue: 1927 / 731

Advancing to step 4:
When dividing 1927 by 731, we get 2 with a remainder of 465.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 1462 from 1927 and we're left with 465.
Take the next digit (8) from the dividend and append it to 465, then repeat: 4658 / 731

Moving on to step 5:
If we divide 4658 by 731, we get 6 and a remainder of 272.
The next digit of our result is 6. 
Result so far: 26.0
Deduct 4386 from 4658 and we're left with 272.
Bring next digit (9) of the dividend behind the 272 and repeat the process: 2729 / 731

Advancing to step 6:
731 goes into 2729 3 times with a remainder of 536.
The number 3 becomes the next digit in our result. 
Result so far: 263.0
The remainder is 536 after subtracting 2193 from 2729.
Fetch the next digit (2) from the dividend, attach it to 536 and continue: 5362 / 731

Advancing to step 7:
The number 731 fits into 5362 7 times, leaving a remainder of 245.
Put 7 as the next digit of the answer. 
Result so far: 2637.0
If we subtract 5117 from 5362, we get 245.
Include the next digit (1) from the dividend after 245, then repeat: 2451 / 731

Advancing to step 8:
731 can be fit into 2451 3 times, resulting in a remainder of 258.
The next digit of our result is 3. 
Result so far: 26373.0
Deduct 2193 from 2451 and we're left with 258.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2580, and continue the process.

Advancing to step 9:
When dividing 2580 by 731, we get 3 with a remainder of 387.
The number 3 becomes the next digit in our result. 
Result so far: 26373.3
Deduct 2193 from 2580 and we're left with 387.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3870, and continue the process.

Going ahead to step 10:
When dividing 3870 by 731, we get 5 with a remainder of 215.
Record the quotient 5 as the next digit in the result. 
Result so far: 26373.35
Subtract 3655 from 3870 to get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Going ahead to step 11:
The number 731 fits into 2150 2 times, leaving a remainder of 688.
The next digit of our result is 2. 
Result so far: 26373.352
The remainder is 688 after subtracting 1462 from 2150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6880, and continue the process.

Going ahead to step 12:
731 can be fit into 6880 9 times, resulting in a remainder of 301.
Record the quotient 9 as the next digit in the result. 
Result so far: 26373.3529
Subtract 6579 from 6880 to get 301.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3010, and continue the process.

Moving on to step 13:
The number 731 fits into 3010 4 times, leaving a remainder of 86.
The next digit of our result is 4. 
Result so far: 26373.35294
Subtracting 2924 from 3010 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Step 14:
If we divide 860 by 731, we get 1 and a remainder of 129.
Write down 1 as next digit of the result. 
Result so far: 26373.352941
The remainder is 129 after subtracting 731 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1290, and continue the process.

Let's proceed to step 15:
The number 731 fits into 1290 1 times, leaving a remainder of 559.
The number 1 becomes the next digit in our result. 
Result so far: 26373.3529411
Subtracting 731 from 1290 leaves us with 559.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5590, and continue the process.

The quotient of the division is 26373.3529411, and the remainder is 5.59e-06.