We look at the division of 31594018 by 431 
The aim is to understand the frequency of 431 in 31594018.

Step 1:
3 divided by 431 is 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 431

Moving on to step 2:
The number 431 fits into 31 0 times, leaving a remainder of 31.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Bring next digit (5) of the dividend behind the 31 and repeat the process: 315 / 431

Going ahead to step 3:
431 goes into 315 0 times with a remainder of 315.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 315 and we're left with 315.
Bring next digit (9) of the dividend behind the 315 and repeat the process: 3159 / 431

Step 4:
When dividing 3159 by 431, we get 7 with a remainder of 142.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 3017 from 3159, we get 142.
Grab the next digit (4) from the dividend, add it to 142, then carry on: 1424 / 431

Step 5:
The number 431 fits into 1424 3 times, leaving a remainder of 131.
The next digit of our result is 3. 
Result so far: 73.0
The remainder is 131 after subtracting 1293 from 1424.
Bring next digit (0) of the dividend behind the 131 and repeat the process: 1310 / 431

Step 6:
431 can be fit into 1310 3 times, resulting in a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 733.0
The remainder is 17 after subtracting 1293 from 1310.
Take the next digit (1) from the dividend and append it to 17, then repeat: 171 / 431

Advancing to step 7:
171 divided by 431 is 0 with a remainder of 171.
Use 0 as the next digit of our solution. 
Result so far: 7330.0
Deduct 0 from 171 and we're left with 171.
Take the next digit (8) from the dividend and append it to 171, then repeat: 1718 / 431

Moving on to step 8:
431 goes into 1718 3 times with a remainder of 425.
The next digit of our result is 3. 
Result so far: 73303.0
Subtracting 1293 from 1718 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Let's proceed to step 9:
4250 divided by 431 is 9 with a remainder of 371.
Put 9 as the next digit of the answer. 
Result so far: 73303.9
Deduct 3879 from 4250 and we're left with 371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3710, and continue the process.

Going ahead to step 10:
431 goes into 3710 8 times with a remainder of 262.
Record the quotient 8 as the next digit in the result. 
Result so far: 73303.98
If we subtract 3448 from 3710, we get 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Advancing to step 11:
431 can be fit into 2620 6 times, resulting in a remainder of 34.
Use 6 as the next digit of our solution. 
Result so far: 73303.986
Deduct 2586 from 2620 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 12:
The number 431 fits into 340 0 times, leaving a remainder of 340.
Write down 0 as next digit of the result. 
Result so far: 73303.986
The remainder is 340 after subtracting 0 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

On to step 13:
431 can be fit into 3400 7 times, resulting in a remainder of 383.
The number 7 becomes the next digit in our result. 
Result so far: 73303.98607
If we take 3017 away from 3400, we end up with 383.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Advancing to step 14:
If we divide 3830 by 431, we get 8 and a remainder of 382.
Write down 8 as next digit of the result. 
Result so far: 73303.986078
If we subtract 3448 from 3830, we get 382.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3820, and continue the process.

Moving on to step 15:
431 goes into 3820 8 times with a remainder of 372.
The next digit of our result is 8. 
Result so far: 73303.9860788
If we take 3448 away from 3820, we end up with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Our division results in 73303.9860788 with a remaining 3.72e-06.