31129258 divided by 426 
The aim is to understand the frequency of 426 in 31129258.

Advancing to step 1:
3 divided by 426 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (1) from the dividend after 3, then repeat: 31 / 426

Let's proceed to step 2:
When dividing 31 by 426, we get 0 with a remainder of 31.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 31 to get 31.
Take the next digit (1) from the dividend and append it to 31, then repeat: 311 / 426

Let's proceed to step 3:
426 goes into 311 0 times with a remainder of 311.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 311 and we're left with 311.
Grab the next digit (2) from the dividend, add it to 311, then carry on: 3112 / 426

Let's proceed to step 4:
If we divide 3112 by 426, we get 7 and a remainder of 130.
Write down 7 as next digit of the result. 
Result so far: 7.0
Deduct 2982 from 3112 and we're left with 130.
Bring next digit (9) of the dividend behind the 130 and repeat the process: 1309 / 426

Let's proceed to step 5:
426 can be fit into 1309 3 times, resulting in a remainder of 31.
Write down 3 as next digit of the result. 
Result so far: 73.0
Subtracting 1278 from 1309 leaves us with 31.
Take the next digit (2) from the dividend and append it to 31, then repeat: 312 / 426

On to step 6:
426 can be fit into 312 0 times, resulting in a remainder of 312.
Record the quotient 0 as the next digit in the result. 
Result so far: 730.0
If we take 0 away from 312, we end up with 312.
Grab the next digit (5) from the dividend, add it to 312, then carry on: 3125 / 426

Let's proceed to step 7:
3125 divided by 426 is 7 with a remainder of 143.
Put 7 as the next digit of the answer. 
Result so far: 7307.0
Deduct 2982 from 3125 and we're left with 143.
Bring next digit (8) of the dividend behind the 143 and repeat the process: 1438 / 426

Advancing to step 8:
The number 426 fits into 1438 3 times, leaving a remainder of 160.
Record the quotient 3 as the next digit in the result. 
Result so far: 73073.0
If we subtract 1278 from 1438, we get 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Step 9:
If we divide 1600 by 426, we get 3 and a remainder of 322.
Write down 3 as next digit of the result. 
Result so far: 73073.3
Subtracting 1278 from 1600 leaves us with 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Let's proceed to step 10:
If we divide 3220 by 426, we get 7 and a remainder of 238.
The number 7 becomes the next digit in our result. 
Result so far: 73073.37
Deduct 2982 from 3220 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 11:
2380 divided by 426 is 5 with a remainder of 250.
The next digit of our result is 5. 
Result so far: 73073.375
Subtract 2130 from 2380 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Moving on to step 12:
426 can be fit into 2500 5 times, resulting in a remainder of 370.
Put 5 as the next digit of the answer. 
Result so far: 73073.3755
Subtract 2130 from 2500 to get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

The final outcome is 73073.3755, with a leftover of 0.0037.