Let's divide 31426248 by 428
The aim is to understand the frequency of 428 in 31426248.

Moving on to step 1:
When dividing 3 by 428, we get 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Take the next digit (1) from the dividend and append it to 3, then repeat: 31 / 428

Let's proceed to step 2:
31 divided by 428 is 0 with a remainder of 31.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 31 after subtracting 0 from 31.
Grab the next digit (4) from the dividend, add it to 31, then carry on: 314 / 428

Advancing to step 3:
428 goes into 314 0 times with a remainder of 314.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 314 leaves us with 314.
Bring next digit (2) of the dividend behind the 314 and repeat the process: 3142 / 428

On to step 4:
When dividing 3142 by 428, we get 7 with a remainder of 146.
Use 7 as the next digit of our solution. 
Result so far: 7.0
The remainder is 146 after subtracting 2996 from 3142.
Grab the next digit (6) from the dividend, add it to 146, then carry on: 1466 / 428

Step 5:
The number 428 fits into 1466 3 times, leaving a remainder of 182.
The next digit of our result is 3. 
Result so far: 73.0
Subtracting 1284 from 1466 leaves us with 182.
Include the next digit (2) from the dividend after 182, then repeat: 1822 / 428

Advancing to step 6:
1822 divided by 428 is 4 with a remainder of 110.
Write down 4 as next digit of the result. 
Result so far: 734.0
If we take 1712 away from 1822, we end up with 110.
Grab the next digit (4) from the dividend, add it to 110, then carry on: 1104 / 428

On to step 7:
1104 divided by 428 is 2 with a remainder of 248.
The number 2 becomes the next digit in our result. 
Result so far: 7342.0
The remainder is 248 after subtracting 856 from 1104.
Bring next digit (8) of the dividend behind the 248 and repeat the process: 2488 / 428

Moving on to step 8:
If we divide 2488 by 428, we get 5 and a remainder of 348.
Use 5 as the next digit of our solution. 
Result so far: 73425.0
Subtracting 2140 from 2488 leaves us with 348.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3480, and continue the process.

Moving on to step 9:
428 can be fit into 3480 8 times, resulting in a remainder of 56.
Use 8 as the next digit of our solution. 
Result so far: 73425.8
If we take 3424 away from 3480, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 10:
428 goes into 560 1 times with a remainder of 132.
Write down 1 as next digit of the result. 
Result so far: 73425.81
If we take 428 away from 560, we end up with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Moving on to step 11:
The number 428 fits into 1320 3 times, leaving a remainder of 36.
Record the quotient 3 as the next digit in the result. 
Result so far: 73425.813
If we subtract 1284 from 1320, we get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

On to step 12:
428 goes into 360 0 times with a remainder of 360.
Put 0 as the next digit of the answer. 
Result so far: 73425.813
If we subtract 0 from 360, we get 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Advancing to step 13:
If we divide 3600 by 428, we get 8 and a remainder of 176.
Use 8 as the next digit of our solution. 
Result so far: 73425.81308
The remainder is 176 after subtracting 3424 from 3600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 14:
The number 428 fits into 1760 4 times, leaving a remainder of 48.
The number 4 becomes the next digit in our result. 
Result so far: 73425.813084
The remainder is 48 after subtracting 1712 from 1760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Moving on to step 15:
The number 428 fits into 480 1 times, leaving a remainder of 52.
Write down 1 as next digit of the result. 
Result so far: 73425.8130841
The remainder is 52 after subtracting 428 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Let's proceed to step 16:
If we divide 520 by 428, we get 1 and a remainder of 92.
The number 1 becomes the next digit in our result. 
Result so far: 73425.81308411
If we subtract 428 from 520, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

The final outcome is 73425.81308411, with a leftover of 9.2e-08.