51920859 ÷ 97 
The aim is to understand the frequency of 97 in 51920859.

Advancing to step 1:
If we divide 5 by 97, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 97

Going ahead to step 2:
When dividing 51 by 97, we get 0 with a remainder of 51.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 51 after subtracting 0 from 51.
Take the next digit (9) from the dividend and append it to 51, then repeat: 519 / 97

On to step 3:
The number 97 fits into 519 5 times, leaving a remainder of 34.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
The remainder is 34 after subtracting 485 from 519.
Grab the next digit (2) from the dividend, add it to 34, then carry on: 342 / 97

On to step 4:
The number 97 fits into 342 3 times, leaving a remainder of 51.
Use 3 as the next digit of our solution. 
Result so far: 53.0
Subtract 291 from 342 to get 51.
Append the next digit (0) from the dividend to 51 and continue with: 510 / 97

Step 5:
If we divide 510 by 97, we get 5 and a remainder of 25.
The next digit of our result is 5. 
Result so far: 535.0
The remainder is 25 after subtracting 485 from 510.
Grab the next digit (8) from the dividend, add it to 25, then carry on: 258 / 97

On to step 6:
When dividing 258 by 97, we get 2 with a remainder of 64.
Record the quotient 2 as the next digit in the result. 
Result so far: 5352.0
The remainder is 64 after subtracting 194 from 258.
Fetch the next digit (5) from the dividend, attach it to 64 and continue: 645 / 97

Advancing to step 7:
The number 97 fits into 645 6 times, leaving a remainder of 63.
The next digit of our result is 6. 
Result so far: 53526.0
Deduct 582 from 645 and we're left with 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 97

On to step 8:
639 divided by 97 is 6 with a remainder of 57.
Record the quotient 6 as the next digit in the result. 
Result so far: 535266.0
Subtract 582 from 639 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 9:
The number 97 fits into 570 5 times, leaving a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 535266.5
If we subtract 485 from 570, we get 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Advancing to step 10:
When dividing 850 by 97, we get 8 with a remainder of 74.
The number 8 becomes the next digit in our result. 
Result so far: 535266.58
Deduct 776 from 850 and we're left with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Step 11:
If we divide 740 by 97, we get 7 and a remainder of 61.
The next digit of our result is 7. 
Result so far: 535266.587
If we subtract 679 from 740, we get 61.
Since there are no more digits in the dividend, we add a zero to the remainder making it 610, and continue the process.

Going ahead to step 12:
610 divided by 97 is 6 with a remainder of 28.
The next digit of our result is 6. 
Result so far: 535266.5876
If we subtract 582 from 610, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 13:
If we divide 280 by 97, we get 2 and a remainder of 86.
Put 2 as the next digit of the answer. 
Result so far: 535266.58762
The remainder is 86 after subtracting 194 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 14:
When dividing 860 by 97, we get 8 with a remainder of 84.
Record the quotient 8 as the next digit in the result. 
Result so far: 535266.587628
Subtracting 776 from 860 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Moving on to step 15:
If we divide 840 by 97, we get 8 and a remainder of 64.
Record the quotient 8 as the next digit in the result. 
Result so far: 535266.5876288
Subtract 776 from 840 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

After the division, we end up with 535266.5876288 and a remainder of 6.4e-07.