We divide 51115317 by 669
We're looking to find how many times 669 goes into 51115317.

On to step 1:
5 divided by 669 is 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 5 and we're left with 5.
Take the next digit (1) from the dividend and append it to 5, then repeat: 51 / 669

Going ahead to step 2:
When dividing 51 by 669, we get 0 with a remainder of 51.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 51 to get 51.
Include the next digit (1) from the dividend after 51, then repeat: 511 / 669

Step 3:
When dividing 511 by 669, we get 0 with a remainder of 511.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 511 after subtracting 0 from 511.
Append the next digit (1) from the dividend to 511 and continue with: 5111 / 669

Advancing to step 4:
When dividing 5111 by 669, we get 7 with a remainder of 428.
Use 7 as the next digit of our solution. 
Result so far: 7.0
If we take 4683 away from 5111, we end up with 428.
Append the next digit (5) from the dividend to 428 and continue with: 4285 / 669

Moving on to step 5:
If we divide 4285 by 669, we get 6 and a remainder of 271.
Put 6 as the next digit of the answer. 
Result so far: 76.0
Subtracting 4014 from 4285 leaves us with 271.
Append the next digit (3) from the dividend to 271 and continue with: 2713 / 669

Step 6:
669 goes into 2713 4 times with a remainder of 37.
Put 4 as the next digit of the answer. 
Result so far: 764.0
If we subtract 2676 from 2713, we get 37.
Grab the next digit (1) from the dividend, add it to 37, then carry on: 371 / 669

Moving on to step 7:
When dividing 371 by 669, we get 0 with a remainder of 371.
The next digit of our result is 0. 
Result so far: 7640.0
The remainder is 371 after subtracting 0 from 371.
Take the next digit (7) from the dividend and append it to 371, then repeat: 3717 / 669

Step 8:
When dividing 3717 by 669, we get 5 with a remainder of 372.
The number 5 becomes the next digit in our result. 
Result so far: 76405.0
If we take 3345 away from 3717, we end up with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Advancing to step 9:
3720 divided by 669 is 5 with a remainder of 375.
The next digit of our result is 5. 
Result so far: 76405.5
Subtract 3345 from 3720 to get 375.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3750, and continue the process.

Advancing to step 10:
3750 divided by 669 is 5 with a remainder of 405.
The number 5 becomes the next digit in our result. 
Result so far: 76405.55
Deduct 3345 from 3750 and we're left with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

The final result is 76405.55 with a remainder of 0.405.