Let's divide 33431310 by 428
The aim is to understand the frequency of 428 in 33431310.

Going ahead to step 1:
When dividing 3 by 428, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 428

Step 2:
33 divided by 428 is 0 with a remainder of 33.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Bring next digit (4) of the dividend behind the 33 and repeat the process: 334 / 428

Moving on to step 3:
428 can be fit into 334 0 times, resulting in a remainder of 334.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 334 leaves us with 334.
Append the next digit (3) from the dividend to 334 and continue with: 3343 / 428

On to step 4:
3343 divided by 428 is 7 with a remainder of 347.
Put 7 as the next digit of the answer. 
Result so far: 7.0
If we take 2996 away from 3343, we end up with 347.
Append the next digit (1) from the dividend to 347 and continue with: 3471 / 428

On to step 5:
428 can be fit into 3471 8 times, resulting in a remainder of 47.
Put 8 as the next digit of the answer. 
Result so far: 78.0
Subtract 3424 from 3471 to get 47.
Grab the next digit (3) from the dividend, add it to 47, then carry on: 473 / 428

Advancing to step 6:
428 can be fit into 473 1 times, resulting in a remainder of 45.
Write down 1 as next digit of the result. 
Result so far: 781.0
Subtract 428 from 473 to get 45.
Append the next digit (1) from the dividend to 45 and continue with: 451 / 428

Moving on to step 7:
451 divided by 428 is 1 with a remainder of 23.
Use 1 as the next digit of our solution. 
Result so far: 7811.0
Subtract 428 from 451 to get 23.
Take the next digit (0) from the dividend and append it to 23, then repeat: 230 / 428

Advancing to step 8:
When dividing 230 by 428, we get 0 with a remainder of 230.
The next digit of our result is 0. 
Result so far: 78110.0
Subtracting 0 from 230 leaves us with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 9:
2300 divided by 428 is 5 with a remainder of 160.
The number 5 becomes the next digit in our result. 
Result so far: 78110.5
Subtracting 2140 from 2300 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Going ahead to step 10:
428 goes into 1600 3 times with a remainder of 316.
Record the quotient 3 as the next digit in the result. 
Result so far: 78110.53
Subtract 1284 from 1600 to get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

On to step 11:
428 can be fit into 3160 7 times, resulting in a remainder of 164.
Record the quotient 7 as the next digit in the result. 
Result so far: 78110.537
Subtracting 2996 from 3160 leaves us with 164.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1640, and continue the process.

Advancing to step 12:
If we divide 1640 by 428, we get 3 and a remainder of 356.
The number 3 becomes the next digit in our result. 
Result so far: 78110.5373
Subtract 1284 from 1640 to get 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

Let's proceed to step 13:
428 goes into 3560 8 times with a remainder of 136.
The number 8 becomes the next digit in our result. 
Result so far: 78110.53738
The remainder is 136 after subtracting 3424 from 3560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Moving on to step 14:
If we divide 1360 by 428, we get 3 and a remainder of 76.
Use 3 as the next digit of our solution. 
Result so far: 78110.537383
The remainder is 76 after subtracting 1284 from 1360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 15:
428 goes into 760 1 times with a remainder of 332.
Record the quotient 1 as the next digit in the result. 
Result so far: 78110.5373831
The remainder is 332 after subtracting 428 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3320, and continue the process.

Going ahead to step 16:
The number 428 fits into 3320 7 times, leaving a remainder of 324.
Use 7 as the next digit of our solution. 
Result so far: 78110.53738317
Subtract 2996 from 3320 to get 324.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

The final outcome is 78110.53738317, with a leftover of 3.24e-07.