78168821 ÷ 669 
Let's see how many times 669 fits into 78168821.

Advancing to step 1:
7 divided by 669 is 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 669

Going ahead to step 2:
669 can be fit into 78 0 times, resulting in a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 78 after subtracting 0 from 78.
Fetch the next digit (1) from the dividend, attach it to 78 and continue: 781 / 669

Step 3:
669 can be fit into 781 1 times, resulting in a remainder of 112.
The next digit of our result is 1. 
Result so far: 1.0
Subtract 669 from 781 to get 112.
Append the next digit (6) from the dividend to 112 and continue with: 1126 / 669

Going ahead to step 4:
669 can be fit into 1126 1 times, resulting in a remainder of 457.
Use 1 as the next digit of our solution. 
Result so far: 11.0
Deduct 669 from 1126 and we're left with 457.
Include the next digit (8) from the dividend after 457, then repeat: 4578 / 669

Step 5:
When dividing 4578 by 669, we get 6 with a remainder of 564.
The number 6 becomes the next digit in our result. 
Result so far: 116.0
If we take 4014 away from 4578, we end up with 564.
Take the next digit (8) from the dividend and append it to 564, then repeat: 5648 / 669

Step 6:
The number 669 fits into 5648 8 times, leaving a remainder of 296.
Put 8 as the next digit of the answer. 
Result so far: 1168.0
If we subtract 5352 from 5648, we get 296.
Take the next digit (2) from the dividend and append it to 296, then repeat: 2962 / 669

Advancing to step 7:
If we divide 2962 by 669, we get 4 and a remainder of 286.
The next digit of our result is 4. 
Result so far: 11684.0
If we take 2676 away from 2962, we end up with 286.
Grab the next digit (1) from the dividend, add it to 286, then carry on: 2861 / 669

Advancing to step 8:
669 can be fit into 2861 4 times, resulting in a remainder of 185.
Put 4 as the next digit of the answer. 
Result so far: 116844.0
If we subtract 2676 from 2861, we get 185.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1850, and continue the process.

Going ahead to step 9:
669 can be fit into 1850 2 times, resulting in a remainder of 512.
The number 2 becomes the next digit in our result. 
Result so far: 116844.2
If we take 1338 away from 1850, we end up with 512.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5120, and continue the process.

Step 10:
When dividing 5120 by 669, we get 7 with a remainder of 437.
The number 7 becomes the next digit in our result. 
Result so far: 116844.27
Subtracting 4683 from 5120 leaves us with 437.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4370, and continue the process.

Advancing to step 11:
If we divide 4370 by 669, we get 6 and a remainder of 356.
The next digit of our result is 6. 
Result so far: 116844.276
If we take 4014 away from 4370, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

On to step 12:
669 goes into 3560 5 times with a remainder of 215.
Put 5 as the next digit of the answer. 
Result so far: 116844.2765
If we subtract 3345 from 3560, we get 215.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2150, and continue the process.

Moving on to step 13:
669 can be fit into 2150 3 times, resulting in a remainder of 143.
The number 3 becomes the next digit in our result. 
Result so far: 116844.27653
If we subtract 2007 from 2150, we get 143.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1430, and continue the process.

Let's proceed to step 14:
1430 divided by 669 is 2 with a remainder of 92.
Put 2 as the next digit of the answer. 
Result so far: 116844.276532
Deduct 1338 from 1430 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Let's proceed to step 15:
669 goes into 920 1 times with a remainder of 251.
Use 1 as the next digit of our solution. 
Result so far: 116844.2765321
Subtracting 669 from 920 leaves us with 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2510, and continue the process.

Step 16:
If we divide 2510 by 669, we get 3 and a remainder of 503.
Use 3 as the next digit of our solution. 
Result so far: 116844.27653213
If we take 2007 away from 2510, we end up with 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

The quotient of the division is 116844.27653213, and the remainder is 5.03e-07.