71212700 ÷ 669 
The aim is to understand the frequency of 669 in 71212700.

Going ahead to step 1:
7 divided by 669 is 0 with a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 7, we get 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 669

Advancing to step 2:
669 goes into 71 0 times with a remainder of 71.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 71, we get 71.
Append the next digit (2) from the dividend to 71 and continue with: 712 / 669

Going ahead to step 3:
669 goes into 712 1 times with a remainder of 43.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 669 from 712 to get 43.
Bring next digit (1) of the dividend behind the 43 and repeat the process: 431 / 669

Advancing to step 4:
The number 669 fits into 431 0 times, leaving a remainder of 431.
Put 0 as the next digit of the answer. 
Result so far: 10.0
The remainder is 431 after subtracting 0 from 431.
Grab the next digit (2) from the dividend, add it to 431, then carry on: 4312 / 669

Advancing to step 5:
669 goes into 4312 6 times with a remainder of 298.
The number 6 becomes the next digit in our result. 
Result so far: 106.0
If we subtract 4014 from 4312, we get 298.
Fetch the next digit (7) from the dividend, attach it to 298 and continue: 2987 / 669

On to step 6:
669 goes into 2987 4 times with a remainder of 311.
The number 4 becomes the next digit in our result. 
Result so far: 1064.0
Subtracting 2676 from 2987 leaves us with 311.
Fetch the next digit (0) from the dividend, attach it to 311 and continue: 3110 / 669

Advancing to step 7:
If we divide 3110 by 669, we get 4 and a remainder of 434.
Use 4 as the next digit of our solution. 
Result so far: 10644.0
Deduct 2676 from 3110 and we're left with 434.
Take the next digit (0) from the dividend and append it to 434, then repeat: 4340 / 669

Advancing to step 8:
4340 divided by 669 is 6 with a remainder of 326.
Record the quotient 6 as the next digit in the result. 
Result so far: 106446.0
Deduct 4014 from 4340 and we're left with 326.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3260, and continue the process.

Step 9:
669 can be fit into 3260 4 times, resulting in a remainder of 584.
Put 4 as the next digit of the answer. 
Result so far: 106446.4
Subtract 2676 from 3260 to get 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Advancing to step 10:
5840 divided by 669 is 8 with a remainder of 488.
The next digit of our result is 8. 
Result so far: 106446.48
If we subtract 5352 from 5840, we get 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Step 11:
When dividing 4880 by 669, we get 7 with a remainder of 197.
Put 7 as the next digit of the answer. 
Result so far: 106446.487
Subtracting 4683 from 4880 leaves us with 197.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1970, and continue the process.

Advancing to step 12:
If we divide 1970 by 669, we get 2 and a remainder of 632.
The next digit of our result is 2. 
Result so far: 106446.4872
If we take 1338 away from 1970, we end up with 632.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6320, and continue the process.

On to step 13:
When dividing 6320 by 669, we get 9 with a remainder of 299.
The number 9 becomes the next digit in our result. 
Result so far: 106446.48729
Subtracting 6021 from 6320 leaves us with 299.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2990, and continue the process.

Going ahead to step 14:
The number 669 fits into 2990 4 times, leaving a remainder of 314.
Write down 4 as next digit of the result. 
Result so far: 106446.487294
Deduct 2676 from 2990 and we're left with 314.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3140, and continue the process.

Advancing to step 15:
3140 divided by 669 is 4 with a remainder of 464.
Record the quotient 4 as the next digit in the result. 
Result so far: 106446.4872944
The remainder is 464 after subtracting 2676 from 3140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

In conclusion, the division gives 106446.4872944 with a balance of 4.64e-06.