We divide 87894579 by 431
The aim is to understand the frequency of 431 in 87894579.

Moving on to step 1:
When dividing 8 by 431, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 431

Step 2:
431 goes into 87 0 times with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 87 after subtracting 0 from 87.
Fetch the next digit (8) from the dividend, attach it to 87 and continue: 878 / 431

Moving on to step 3:
The number 431 fits into 878 2 times, leaving a remainder of 16.
The next digit of our result is 2. 
Result so far: 2.0
The remainder is 16 after subtracting 862 from 878.
Append the next digit (9) from the dividend to 16 and continue with: 169 / 431

On to step 4:
If we divide 169 by 431, we get 0 and a remainder of 169.
Put 0 as the next digit of the answer. 
Result so far: 20.0
The remainder is 169 after subtracting 0 from 169.
Grab the next digit (4) from the dividend, add it to 169, then carry on: 1694 / 431

Let's proceed to step 5:
1694 divided by 431 is 3 with a remainder of 401.
Write down 3 as next digit of the result. 
Result so far: 203.0
Subtract 1293 from 1694 to get 401.
Grab the next digit (5) from the dividend, add it to 401, then carry on: 4015 / 431

Moving on to step 6:
If we divide 4015 by 431, we get 9 and a remainder of 136.
The next digit of our result is 9. 
Result so far: 2039.0
If we subtract 3879 from 4015, we get 136.
Grab the next digit (7) from the dividend, add it to 136, then carry on: 1367 / 431

Going ahead to step 7:
431 can be fit into 1367 3 times, resulting in a remainder of 74.
Put 3 as the next digit of the answer. 
Result so far: 20393.0
Deduct 1293 from 1367 and we're left with 74.
Bring next digit (9) of the dividend behind the 74 and repeat the process: 749 / 431

Advancing to step 8:
431 goes into 749 1 times with a remainder of 318.
Put 1 as the next digit of the answer. 
Result so far: 203931.0
The remainder is 318 after subtracting 431 from 749.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3180, and continue the process.

Let's proceed to step 9:
431 goes into 3180 7 times with a remainder of 163.
Put 7 as the next digit of the answer. 
Result so far: 203931.7
If we subtract 3017 from 3180, we get 163.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1630, and continue the process.

On to step 10:
The number 431 fits into 1630 3 times, leaving a remainder of 337.
Use 3 as the next digit of our solution. 
Result so far: 203931.73
Deduct 1293 from 1630 and we're left with 337.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3370, and continue the process.

Going ahead to step 11:
If we divide 3370 by 431, we get 7 and a remainder of 353.
Put 7 as the next digit of the answer. 
Result so far: 203931.737
The remainder is 353 after subtracting 3017 from 3370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3530, and continue the process.

Advancing to step 12:
When dividing 3530 by 431, we get 8 with a remainder of 82.
Write down 8 as next digit of the result. 
Result so far: 203931.7378
If we take 3448 away from 3530, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Moving on to step 13:
If we divide 820 by 431, we get 1 and a remainder of 389.
The next digit of our result is 1. 
Result so far: 203931.73781
Subtract 431 from 820 to get 389.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3890, and continue the process.

Step 14:
431 can be fit into 3890 9 times, resulting in a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 203931.737819
Subtract 3879 from 3890 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Going ahead to step 15:
431 can be fit into 110 0 times, resulting in a remainder of 110.
Put 0 as the next digit of the answer. 
Result so far: 203931.737819
The remainder is 110 after subtracting 0 from 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Let's proceed to step 16:
The number 431 fits into 1100 2 times, leaving a remainder of 238.
Record the quotient 2 as the next digit in the result. 
Result so far: 203931.73781902
Subtract 862 from 1100 to get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

The final result is 203931.73781902 with a remainder of 2.38e-07.