67304389 ÷ 426 
The aim is to understand the frequency of 426 in 67304389.

Let's proceed to step 1:
If we divide 6 by 426, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (7) of the dividend behind the 6 and repeat the process: 67 / 426

Advancing to step 2:
The number 426 fits into 67 0 times, leaving a remainder of 67.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 67, we get 67.
Grab the next digit (3) from the dividend, add it to 67, then carry on: 673 / 426

On to step 3:
If we divide 673 by 426, we get 1 and a remainder of 247.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 247 after subtracting 426 from 673.
Bring next digit (0) of the dividend behind the 247 and repeat the process: 2470 / 426

Step 4:
If we divide 2470 by 426, we get 5 and a remainder of 340.
Record the quotient 5 as the next digit in the result. 
Result so far: 15.0
Subtracting 2130 from 2470 leaves us with 340.
Take the next digit (4) from the dividend and append it to 340, then repeat: 3404 / 426

Advancing to step 5:
When dividing 3404 by 426, we get 7 with a remainder of 422.
The number 7 becomes the next digit in our result. 
Result so far: 157.0
Subtract 2982 from 3404 to get 422.
Grab the next digit (3) from the dividend, add it to 422, then carry on: 4223 / 426

Moving on to step 6:
If we divide 4223 by 426, we get 9 and a remainder of 389.
The next digit of our result is 9. 
Result so far: 1579.0
The remainder is 389 after subtracting 3834 from 4223.
Grab the next digit (8) from the dividend, add it to 389, then carry on: 3898 / 426

Step 7:
426 can be fit into 3898 9 times, resulting in a remainder of 64.
The number 9 becomes the next digit in our result. 
Result so far: 15799.0
The remainder is 64 after subtracting 3834 from 3898.
Append the next digit (9) from the dividend to 64 and continue with: 649 / 426

Going ahead to step 8:
If we divide 649 by 426, we get 1 and a remainder of 223.
Write down 1 as next digit of the result. 
Result so far: 157991.0
If we take 426 away from 649, we end up with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

On to step 9:
When dividing 2230 by 426, we get 5 with a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 157991.5
The remainder is 100 after subtracting 2130 from 2230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

On to step 10:
426 goes into 1000 2 times with a remainder of 148.
Use 2 as the next digit of our solution. 
Result so far: 157991.52
Subtracting 852 from 1000 leaves us with 148.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1480, and continue the process.

Step 11:
1480 divided by 426 is 3 with a remainder of 202.
The number 3 becomes the next digit in our result. 
Result so far: 157991.523
If we take 1278 away from 1480, we end up with 202.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2020, and continue the process.

Step 12:
426 goes into 2020 4 times with a remainder of 316.
The number 4 becomes the next digit in our result. 
Result so far: 157991.5234
If we take 1704 away from 2020, we end up with 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 13:
426 can be fit into 3160 7 times, resulting in a remainder of 178.
Record the quotient 7 as the next digit in the result. 
Result so far: 157991.52347
Deduct 2982 from 3160 and we're left with 178.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1780, and continue the process.

Going ahead to step 14:
The number 426 fits into 1780 4 times, leaving a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 157991.523474
The remainder is 76 after subtracting 1704 from 1780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 15:
If we divide 760 by 426, we get 1 and a remainder of 334.
The next digit of our result is 1. 
Result so far: 157991.5234741
The remainder is 334 after subtracting 426 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Moving on to step 16:
426 goes into 3340 7 times with a remainder of 358.
Put 7 as the next digit of the answer. 
Result so far: 157991.52347417
If we subtract 2982 from 3340, we get 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

The final result is 157991.52347417 with a remainder of 3.58e-07.