We're dividing 63437968 by 426 
The aim is to understand the frequency of 426 in 63437968.

On to step 1:
The number 426 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Grab the next digit (3) from the dividend, add it to 6, then carry on: 63 / 426

Let's proceed to step 2:
426 can be fit into 63 0 times, resulting in a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 63 leaves us with 63.
Append the next digit (4) from the dividend to 63 and continue with: 634 / 426

Going ahead to step 3:
634 divided by 426 is 1 with a remainder of 208.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 426 from 634 leaves us with 208.
Fetch the next digit (3) from the dividend, attach it to 208 and continue: 2083 / 426

Moving on to step 4:
The number 426 fits into 2083 4 times, leaving a remainder of 379.
Use 4 as the next digit of our solution. 
Result so far: 14.0
If we subtract 1704 from 2083, we get 379.
Bring next digit (7) of the dividend behind the 379 and repeat the process: 3797 / 426

Step 5:
426 goes into 3797 8 times with a remainder of 389.
Record the quotient 8 as the next digit in the result. 
Result so far: 148.0
Subtract 3408 from 3797 to get 389.
Include the next digit (9) from the dividend after 389, then repeat: 3899 / 426

On to step 6:
3899 divided by 426 is 9 with a remainder of 65.
Put 9 as the next digit of the answer. 
Result so far: 1489.0
The remainder is 65 after subtracting 3834 from 3899.
Grab the next digit (6) from the dividend, add it to 65, then carry on: 656 / 426

Advancing to step 7:
426 can be fit into 656 1 times, resulting in a remainder of 230.
Record the quotient 1 as the next digit in the result. 
Result so far: 14891.0
Subtract 426 from 656 to get 230.
Include the next digit (8) from the dividend after 230, then repeat: 2308 / 426

Let's proceed to step 8:
426 can be fit into 2308 5 times, resulting in a remainder of 178.
The number 5 becomes the next digit in our result. 
Result so far: 148915.0
Subtracting 2130 from 2308 leaves us 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.

Step 9:
When dividing 1780 by 426, we get 4 with a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 148915.4
Deduct 1704 from 1780 and we're left with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 10:
426 can be fit into 760 1 times, resulting in a remainder of 334.
The next digit of our result is 1. 
Result so far: 148915.41
If we subtract 426 from 760, we get 334.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3340, and continue the process.

Step 11:
426 can be fit into 3340 7 times, resulting in a remainder of 358.
Write down 7 as next digit of the result. 
Result so far: 148915.417
Subtract 2982 from 3340 to 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.

Step 12:
3580 divided by 426 is 8 with a remainder of 172.
Use 8 as the next digit of our solution. 
Result so far: 148915.4178
Deduct 3408 from 3580 and we're left with 172.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1720, and continue the process.

Step 13:
The number 426 fits into 1720 4 times, leaving a remainder of 16.
Put 4 as the next digit of the answer. 
Result so far: 148915.41784
If we take 1704 away from 1720, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Step 14:
If we divide 160 by 426, we get 0 and a remainder of 160.
Use 0 as the next digit of our solution. 
Result so far: 148915.41784
If we subtract 0 from 160, 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.

Moving on to step 15:
426 goes into 1600 3 times with a remainder of 322.
The next digit of our result is 3. 
Result so far: 148915.4178403
Subtract 1278 from 1600 to get 322.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3220, and continue the process.

Going ahead to step 16:
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: 148915.41784037
If we subtract 2982 from 3220, we get 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Our division results in 148915.41784037 with a remaining 2.38e-07.