80990573 ÷ 753 
The aim is to understand the frequency of 753 in 80990573.

Advancing to step 1:
If we divide 8 by 753, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 753

Let's proceed to step 2:
If we divide 80 by 753, we get 0 and a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 80 leaves us with 80.
Bring next digit (9) of the dividend behind the 80 and repeat the process: 809 / 753

On to step 3:
When dividing 809 by 753, we get 1 with a remainder of 56.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 753 from 809 leaves us with 56.
Take the next digit (9) from the dividend and append it to 56, then repeat: 569 / 753

On to step 4:
753 goes into 569 0 times with a remainder of 569.
Put 0 as the next digit of the answer. 
Result so far: 10.0
Subtract 0 from 569 to get 569.
Grab the next digit (0) from the dividend, add it to 569, then carry on: 5690 / 753

Advancing to step 5:
5690 divided by 753 is 7 with a remainder of 419.
The number 7 becomes the next digit in our result. 
Result so far: 107.0
Subtracting 5271 from 5690 leaves us with 419.
Take the next digit (5) from the dividend and append it to 419, then repeat: 4195 / 753

Step 6:
The number 753 fits into 4195 5 times, leaving a remainder of 430.
Use 5 as the next digit of our solution. 
Result so far: 1075.0
The remainder is 430 after subtracting 3765 from 4195.
Bring next digit (7) of the dividend behind the 430 and repeat the process: 4307 / 753

On to step 7:
If we divide 4307 by 753, we get 5 and a remainder of 542.
The next digit of our result is 5. 
Result so far: 10755.0
If we take 3765 away from 4307, we end up with 542.
Append the next digit (3) from the dividend to 542 and continue with: 5423 / 753

On to step 8:
The number 753 fits into 5423 7 times, leaving a remainder of 152.
The number 7 becomes the next digit in our result. 
Result so far: 107557.0
Subtracting 5271 from 5423 leaves us with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Moving on to step 9:
753 goes into 1520 2 times with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 107557.2
The remainder is 14 after subtracting 1506 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 10:
753 can be fit into 140 0 times, resulting in a remainder of 140.
Use 0 as the next digit of our solution. 
Result so far: 107557.2
If we take 0 away from 140, we end up with 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

Going ahead to step 11:
753 goes into 1400 1 times with a remainder of 647.
Use 1 as the next digit of our solution. 
Result so far: 107557.201
If we take 753 away from 1400, we end up with 647.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6470, and continue the process.

Going ahead to step 12:
When dividing 6470 by 753, we get 8 with a remainder of 446.
Write down 8 as next digit of the result. 
Result so far: 107557.2018
Subtract 6024 from 6470 to get 446.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4460, and continue the process.

Moving on to step 13:
4460 divided by 753 is 5 with a remainder of 695.
Use 5 as the next digit of our solution. 
Result so far: 107557.20185
Subtracting 3765 from 4460 leaves us with 695.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6950, and continue the process.

Let's proceed to step 14:
753 can be fit into 6950 9 times, resulting in a remainder of 173.
The next digit of our result is 9. 
Result so far: 107557.201859
Deduct 6777 from 6950 and we're left with 173.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1730, and continue the process.

On to step 15:
If we divide 1730 by 753, we get 2 and a remainder of 224.
The next digit of our result is 2. 
Result so far: 107557.2018592
If we subtract 1506 from 1730, we get 224.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2240, and continue the process.

Moving on to step 16:
The number 753 fits into 2240 2 times, leaving a remainder of 734.
Write down 2 as next digit of the result. 
Result so far: 107557.20185922
If we subtract 1506 from 2240, we get 734.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7340, and continue the process.

The quotient of the division is 107557.20185922, and the remainder is 7.34e-07.