We look at the division of 40287545 by 789 
The aim is to understand the frequency of 789 in 40287545.

Moving on to step 1:
If we divide 4 by 789, we get 0 and a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Take the next digit (0) from the dividend and append it to 4, then repeat: 40 / 789

Let's proceed to step 2:
When dividing 40 by 789, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 40 after subtracting 0 from 40.
Take the next digit (2) from the dividend and append it to 40, then repeat: 402 / 789

Advancing to step 3:
The number 789 fits into 402 0 times, leaving a remainder of 402.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 402, we end up with 402.
Grab the next digit (8) from the dividend, add it to 402, then carry on: 4028 / 789

Advancing to step 4:
When dividing 4028 by 789, we get 5 with a remainder of 83.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
The remainder is 83 after subtracting 3945 from 4028.
Fetch the next digit (7) from the dividend, attach it to 83 and continue: 837 / 789

Advancing to step 5:
If we divide 837 by 789, we get 1 and a remainder of 48.
Record the quotient 1 as the next digit in the result. 
Result so far: 51.0
If we subtract 789 from 837, we get 48.
Include the next digit (5) from the dividend after 48, then repeat: 485 / 789

Moving on to step 6:
789 goes into 485 0 times with a remainder of 485.
Record the quotient 0 as the next digit in the result. 
Result so far: 510.0
Subtract 0 from 485 to get 485.
Grab the next digit (4) from the dividend, add it to 485, then carry on: 4854 / 789

On to step 7:
When dividing 4854 by 789, we get 6 with a remainder of 120.
Use 6 as the next digit of our solution. 
Result so far: 5106.0
Subtracting 4734 from 4854 leaves us with 120.
Append the next digit (5) from the dividend to 120 and continue with: 1205 / 789

On to step 8:
The number 789 fits into 1205 1 times, leaving a remainder of 416.
Record the quotient 1 as the next digit in the result. 
Result so far: 51061.0
If we subtract 789 from 1205, we get 416.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4160, and continue the process.

Let's proceed to step 9:
If we divide 4160 by 789, we get 5 and a remainder of 215.
The number 5 becomes the next digit in our result. 
Result so far: 51061.5
Subtract 3945 from 4160 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 10:
2150 divided by 789 is 2 with a remainder of 572.
Record the quotient 2 as the next digit in the result. 
Result so far: 51061.52
Deduct 1578 from 2150 and we're left with 572.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5720, and continue the process.

On to step 11:
5720 divided by 789 is 7 with a remainder of 197.
Use 7 as the next digit of our solution. 
Result so far: 51061.527
Subtract 5523 from 5720 to get 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Moving on to step 12:
If we divide 1970 by 789, we get 2 and a remainder of 392.
Put 2 as the next digit of the answer. 
Result so far: 51061.5272
If we take 1578 away from 1970, we end up with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

On to step 13:
3920 divided by 789 is 4 with a remainder of 764.
The number 4 becomes the next digit in our result. 
Result so far: 51061.52724
Deduct 3156 from 3920 and we're left with 764.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7640, and continue the process.

Moving on to step 14:
If we divide 7640 by 789, we get 9 and a remainder of 539.
Write down 9 as next digit of the result. 
Result so far: 51061.527249
The remainder is 539 after subtracting 7101 from 7640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5390, and continue the process.

Advancing to step 15:
If we divide 5390 by 789, we get 6 and a remainder of 656.
Record the quotient 6 as the next digit in the result. 
Result so far: 51061.5272496
If we subtract 4734 from 5390, we get 656.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6560, and continue the process.

Moving on to step 16:
When dividing 6560 by 789, we get 8 with a remainder of 248.
Put 8 as the next digit of the answer. 
Result so far: 51061.52724968
Subtract 6312 from 6560 to get 248.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2480, and continue the process.

After the division, we end up with 51061.52724968 and a remainder of 2.48e-07.