51437614 ÷ 423 
The aim is to understand the frequency of 423 in 51437614.

Let's proceed to step 1:
423 goes into 5 0 times with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 423

On to step 2:
423 goes into 51 0 times with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Grab the next digit (4) from the dividend, add it to 51, then carry on: 514 / 423

Moving on to step 3:
423 goes into 514 1 times with a remainder of 91.
Write down 1 as next digit of the result. 
Result so far: 1.0
Deduct 423 from 514 and we're left with 91.
Grab the next digit (3) from the dividend, add it to 91, then carry on: 913 / 423

Advancing to step 4:
423 can be fit into 913 2 times, resulting in a remainder of 67.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Subtract 846 from 913 to get 67.
Append the next digit (7) from the dividend to 67 and continue with: 677 / 423

Step 5:
The number 423 fits into 677 1 times, leaving a remainder of 254.
Put 1 as the next digit of the answer. 
Result so far: 121.0
The remainder is 254 after subtracting 423 from 677.
Append the next digit (6) from the dividend to 254 and continue with: 2546 / 423

On to step 6:
423 goes into 2546 6 times with a remainder of 8.
Put 6 as the next digit of the answer. 
Result so far: 1216.0
If we subtract 2538 from 2546, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 423

Going ahead to step 7:
423 can be fit into 81 0 times, resulting in a remainder of 81.
The next digit of our result is 0. 
Result so far: 12160.0
If we take 0 away from 81, we end up with 81.
Bring next digit (4) of the dividend behind the 81 and repeat the process: 814 / 423

Let's proceed to step 8:
423 can be fit into 814 1 times, resulting in a remainder of 391.
Put 1 as the next digit of the answer. 
Result so far: 121601.0
Deduct 423 from 814 and we're left with 391.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3910, and continue the process.

Advancing to step 9:
If we divide 3910 by 423, we get 9 and a remainder of 103.
Write down 9 as next digit of the result. 
Result so far: 121601.9
If we take 3807 away from 3910, we end up with 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1030, and continue the process.

Let's proceed to step 10:
If we divide 1030 by 423, we get 2 and a remainder of 184.
Use 2 as the next digit of our solution. 
Result so far: 121601.92
If we take 846 away from 1030, we end up with 184.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

Step 11:
1840 divided by 423 is 4 with a remainder of 148.
The number 4 becomes the next digit in our result. 
Result so far: 121601.924
If we take 1692 away from 1840, we end up 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.

Let's proceed to step 12:
1480 divided by 423 is 3 with a remainder of 211.
Put 3 as the next digit of the answer. 
Result so far: 121601.9243
Deduct 1269 from 1480 and we're left with 211.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2110, and continue the process.

Going ahead to step 13:
If we divide 2110 by 423, we get 4 and a remainder of 418.
Record the quotient 4 as the next digit in the result. 
Result so far: 121601.92434
The remainder is 418 after subtracting 1692 from 2110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4180, and continue the process.

Let's proceed to step 14:
423 can be fit into 4180 9 times, resulting in a remainder of 373.
Put 9 as the next digit of the answer. 
Result so far: 121601.924349
If we take 3807 away from 4180, we end up with 373.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3730, and continue the process.

Going ahead to step 15:
3730 divided by 423 is 8 with a remainder of 346.
Put 8 as the next digit of the answer. 
Result so far: 121601.9243498
If we take 3384 away from 3730, we end up with 346.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3460, and continue the process.

On to step 16:
When dividing 3460 by 423, we get 8 with a remainder of 76.
The next digit of our result is 8. 
Result so far: 121601.92434988
Subtract 3384 from 3460 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

In conclusion, the division gives 121601.92434988 with a balance of 7.6e-08.