We look at the division of 15558769 by 389 
The aim is to understand the frequency of 389 in 15558769.

Moving on to step 1:
When dividing 1 by 389, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 389

Let's proceed to step 2:
389 goes into 15 0 times with a remainder of 15.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 15, we get 15.
Append the next digit (5) from the dividend to 15 and continue with: 155 / 389

Let's proceed to step 3:
The number 389 fits into 155 0 times, leaving a remainder of 155.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 155 leaves us with 155.
Grab the next digit (5) from the dividend, add it to 155, then carry on: 1555 / 389

Moving on to step 4:
The number 389 fits into 1555 3 times, leaving a remainder of 388.
The next digit of our result is 3. 
Result so far: 3.0
Subtract 1167 from 1555 to get 388.
Take the next digit (8) from the dividend and append it to 388, then repeat: 3888 / 389

Moving on to step 5:
If we divide 3888 by 389, we get 9 and a remainder of 387.
Put 9 as the next digit of the answer. 
Result so far: 39.0
Deduct 3501 from 3888 and we're left with 387.
Grab the next digit (7) from the dividend, add it to 387, then carry on: 3877 / 389

Going ahead to step 6:
389 can be fit into 3877 9 times, resulting in a remainder of 376.
Record the quotient 9 as the next digit in the result. 
Result so far: 399.0
If we take 3501 away from 3877, we end up with 376.
Grab the next digit (6) from the dividend, add it to 376, then carry on: 3766 / 389

Moving on to step 7:
3766 divided by 389 is 9 with a remainder of 265.
The next digit of our result is 9. 
Result so far: 3999.0
Subtracting 3501 from 3766 leaves us with 265.
Include the next digit (9) from the dividend after 265, then repeat: 2659 / 389

Going ahead to step 8:
When dividing 2659 by 389, we get 6 with a remainder of 325.
Use 6 as the next digit of our solution. 
Result so far: 39996.0
Deduct 2334 from 2659 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Let's proceed to step 9:
If we divide 3250 by 389, we get 8 and a remainder of 138.
Put 8 as the next digit of the answer. 
Result so far: 39996.8
The remainder is 138 after subtracting 3112 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1380, and continue the process.

On to step 10:
If we divide 1380 by 389, we get 3 and a remainder of 213.
The number 3 becomes the next digit in our result. 
Result so far: 39996.83
Subtract 1167 from 1380 to get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Going ahead to step 11:
If we divide 2130 by 389, we get 5 and a remainder of 185.
Use 5 as the next digit of our solution. 
Result so far: 39996.835
Subtracting 1945 from 2130 leaves us with 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Let's proceed to step 12:
If we divide 1850 by 389, we get 4 and a remainder of 294.
The number 4 becomes the next digit in our result. 
Result so far: 39996.8354
Subtract 1556 from 1850 to get 294.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2940, and continue the process.

Let's proceed to step 13:
The number 389 fits into 2940 7 times, leaving a remainder of 217.
Record the quotient 7 as the next digit in the result. 
Result so far: 39996.83547
If we take 2723 away from 2940, we end up with 217.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Step 14:
If we divide 2170 by 389, we get 5 and a remainder of 225.
Record the quotient 5 as the next digit in the result. 
Result so far: 39996.835475
Subtract 1945 from 2170 to get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

Let's proceed to step 15:
When dividing 2250 by 389, we get 5 with a remainder of 305.
Write down 5 as next digit of the result. 
Result so far: 39996.8354755
Deduct 1945 from 2250 and we're left with 305.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3050, and continue the process.

After the division, we end up with 39996.8354755 and a remainder of 3.05e-06.