901538 ÷ 51 
The aim is to understand the frequency of 51 in 901538.

Advancing to step 1:
When dividing 9 by 51, we get 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 51

Going ahead to step 2:
The number 51 fits into 90 1 times, leaving a remainder of 39.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 51 from 90, we get 39.
Fetch the next digit (1) from the dividend, attach it to 39 and continue: 391 / 51

Moving on to step 3:
When dividing 391 by 51, we get 7 with a remainder of 34.
Record the quotient 7 as the next digit in the result. 
Result so far: 17.0
Subtract 357 from 391 to get 34.
Include the next digit (5) from the dividend after 34, then repeat: 345 / 51

On to step 4:
345 divided by 51 is 6 with a remainder of 39.
Record the quotient 6 as the next digit in the result. 
Result so far: 176.0
Subtracting 306 from 345 leaves us with 39.
Bring next digit (3) of the dividend behind the 39 and repeat the process: 393 / 51

Step 5:
If we divide 393 by 51, we get 7 and a remainder of 36.
Use 7 as the next digit of our solution. 
Result so far: 1767.0
The remainder is 36 after subtracting 357 from 393.
Include the next digit (8) from the dividend after 36, then repeat: 368 / 51

Going ahead to step 6:
368 divided by 51 is 7 with a remainder of 11.
Put 7 as the next digit of the answer. 
Result so far: 17677.0
If we take 357 away from 368, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 7:
When dividing 110 by 51, we get 2 with a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 17677.2
If we subtract 102 from 110, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
51 goes into 80 1 times with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 17677.21
If we take 51 away from 80, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Step 9:
When dividing 290 by 51, we get 5 with a remainder of 35.
Use 5 as the next digit of our solution. 
Result so far: 17677.215
Deduct 255 from 290 and we're left with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Let's proceed to step 10:
350 divided by 51 is 6 with a remainder of 44.
The next digit of our result is 6. 
Result so far: 17677.2156
The remainder is 44 after subtracting 306 from 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 11:
440 divided by 51 is 8 with a remainder of 32.
Put 8 as the next digit of the answer. 
Result so far: 17677.21568
Deduct 408 from 440 and we're left with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Advancing to step 12:
320 divided by 51 is 6 with a remainder of 14.
The number 6 becomes the next digit in our result. 
Result so far: 17677.215686
Subtracting 306 from 320 leaves us with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 13:
51 goes into 140 2 times with a remainder of 38.
Put 2 as the next digit of the answer. 
Result so far: 17677.2156862
Subtract 102 from 140 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 14:
380 divided by 51 is 7 with a remainder of 23.
The number 7 becomes the next digit in our result. 
Result so far: 17677.21568627
Subtracting 357 from 380 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

In conclusion, the division gives 17677.21568627 with a balance of 2.3e-08.