51061497 ÷ 80 
The aim is to understand the frequency of 80 in 51061497.

On to step 1:
80 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the 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 / 80

Going ahead to step 2:
When dividing 51 by 80, we get 0 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.
Fetch the next digit (0) from the dividend, attach it to 51 and continue: 510 / 80

Advancing to step 3:
510 divided by 80 is 6 with a remainder of 30.
The next digit of our result is 6. 
Result so far: 6.0
Subtracting 480 from 510 leaves us with 30.
Take the next digit (6) from the dividend and append it to 30, then repeat: 306 / 80

Advancing to step 4:
When dividing 306 by 80, we get 3 with a remainder of 66.
The number 3 becomes the next digit in our result. 
Result so far: 63.0
Deduct 240 from 306 and we're left with 66.
Include the next digit (1) from the dividend after 66, then repeat: 661 / 80

Moving on to step 5:
80 can be fit into 661 8 times, resulting in a remainder of 21.
Use 8 as the next digit of our solution. 
Result so far: 638.0
Subtracting 640 from 661 leaves us with 21.
Grab the next digit (4) from the dividend, add it to 21, then carry on: 214 / 80

Advancing to step 6:
If we divide 214 by 80, we get 2 and a remainder of 54.
Put 2 as the next digit of the answer. 
Result so far: 6382.0
Subtracting 160 from 214 leaves us with 54.
Bring next digit (9) of the dividend behind the 54 and repeat the process: 549 / 80

On to step 7:
80 can be fit into 549 6 times, resulting in a remainder of 69.
Record the quotient 6 as the next digit in the result. 
Result so far: 63826.0
Subtracting 480 from 549 leaves us with 69.
Fetch the next digit (7) from the dividend, attach it to 69 and continue: 697 / 80

Let's proceed to step 8:
When dividing 697 by 80, we get 8 with a remainder of 57.
The next digit of our result is 8. 
Result so far: 638268.0
If we take 640 away from 697, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 9:
570 divided by 80 is 7 with a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 638268.7
Subtracting 560 from 570 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 10:
The number 80 fits into 100 1 times, leaving a remainder of 20.
Use 1 as the next digit of our solution. 
Result so far: 638268.71
If we subtract 80 from 100, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
200 divided by 80 is 2 with a remainder of 40.
Put 2 as the next digit of the answer. 
Result so far: 638268.712
Subtracting 160 from 200 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 12:
The number 80 fits into 400 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 638268.7125
Subtract 400 from 400 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 13:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 638268.7125
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 14:
The number 80 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 638268.7125
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 638268.7125 with a balance of 0.0.