We divide 15145989 by 810
The aim is to understand the frequency of 810 in 15145989.

Going ahead to step 1:
1 divided by 810 is 0 with a remainder of 1.
The number 0 becomes the next digit in our 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 / 810

On to step 2:
When dividing 15 by 810, we get 0 with a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 15 leaves us with 15.
Append the next digit (1) from the dividend to 15 and continue with: 151 / 810

Step 3:
151 divided by 810 is 0 with a remainder of 151.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 151, we end up with 151.
Grab the next digit (4) from the dividend, add it to 151, then carry on: 1514 / 810

Moving on to step 4:
810 goes into 1514 1 times with a remainder of 704.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 810 away from 1514, we end up with 704.
Include the next digit (5) from the dividend after 704, then repeat: 7045 / 810

Moving on to step 5:
The number 810 fits into 7045 8 times, leaving a remainder of 565.
Use 8 as the next digit of our solution. 
Result so far: 18.0
Deduct 6480 from 7045 and we're left with 565.
Fetch the next digit (9) from the dividend, attach it to 565 and continue: 5659 / 810

On to step 6:
810 can be fit into 5659 6 times, resulting in a remainder of 799.
Put 6 as the next digit of the answer. 
Result so far: 186.0
If we take 4860 away from 5659, we end up with 799.
Bring next digit (8) of the dividend behind the 799 and repeat the process: 7998 / 810

On to step 7:
810 can be fit into 7998 9 times, resulting in a remainder of 708.
Record the quotient 9 as the next digit in the result. 
Result so far: 1869.0
Subtract 7290 from 7998 to get 708.
Bring next digit (9) of the dividend behind the 708 and repeat the process: 7089 / 810

On to step 8:
810 goes into 7089 8 times with a remainder of 609.
The next digit of our result is 8. 
Result so far: 18698.0
The remainder is 609 after subtracting 6480 from 7089.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6090, and continue the process.

Going ahead to step 9:
When dividing 6090 by 810, we get 7 with a remainder of 420.
The next digit of our result is 7. 
Result so far: 18698.7
Subtract 5670 from 6090 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 10:
When dividing 4200 by 810, we get 5 with a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 18698.75
If we take 4050 away from 4200, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Step 11:
The number 810 fits into 1500 1 times, leaving a remainder of 690.
Put 1 as the next digit of the answer. 
Result so far: 18698.751
The remainder is 690 after subtracting 810 from 1500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

On to step 12:
When dividing 6900 by 810, we get 8 with a remainder of 420.
The number 8 becomes the next digit in our result. 
Result so far: 18698.7518
Subtract 6480 from 6900 to get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 13:
4200 divided by 810 is 5 with a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 18698.75185
If we take 4050 away from 4200, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 14:
If we divide 1500 by 810, we get 1 and a remainder of 690.
Use 1 as the next digit of our solution. 
Result so far: 18698.751851
Deduct 810 from 1500 and we're left with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

Step 15:
When dividing 6900 by 810, we get 8 with a remainder of 420.
Use 8 as the next digit of our solution. 
Result so far: 18698.7518518
Subtracting 6480 from 6900 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Moving on to step 16:
If we divide 4200 by 810, we get 5 and a remainder of 150.
Put 5 as the next digit of the answer. 
Result so far: 18698.75185185
The remainder is 150 after subtracting 4050 from 4200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

The final outcome is 18698.75185185, with a leftover of 1.5e-07.