61666721 ÷ 789 
Our goal is to divide 61666721 by 789.

Moving on to step 1:
If we divide 6 by 789, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 789

Step 2:
The number 789 fits into 61 0 times, leaving a remainder of 61.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 61, we end up with 61.
Bring next digit (6) of the dividend behind the 61 and repeat the process: 616 / 789

Let's proceed to step 3:
789 can be fit into 616 0 times, resulting in a remainder of 616.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 616, we end up with 616.
Grab the next digit (6) from the dividend, add it to 616, then carry on: 6166 / 789

On to step 4:
789 can be fit into 6166 7 times, resulting in a remainder of 643.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
If we take 5523 away from 6166, we end up with 643.
Fetch the next digit (6) from the dividend, attach it to 643 and continue: 6436 / 789

Let's proceed to step 5:
6436 divided by 789 is 8 with a remainder of 124.
The number 8 becomes the next digit in our result. 
Result so far: 78.0
Subtracting 6312 from 6436 leaves us with 124.
Take the next digit (7) from the dividend and append it to 124, then repeat: 1247 / 789

On to step 6:
If we divide 1247 by 789, we get 1 and a remainder of 458.
Write down 1 as next digit of the result. 
Result so far: 781.0
If we subtract 789 from 1247, we get 458.
Grab the next digit (2) from the dividend, add it to 458, then carry on: 4582 / 789

On to step 7:
4582 divided by 789 is 5 with a remainder of 637.
The next digit of our result is 5. 
Result so far: 7815.0
The remainder is 637 after subtracting 3945 from 4582.
Grab the next digit (1) from the dividend, add it to 637, then carry on: 6371 / 789

Let's proceed to step 8:
6371 divided by 789 is 8 with a remainder of 59.
Use 8 as the next digit of our solution. 
Result so far: 78158.0
The remainder is 59 after subtracting 6312 from 6371.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Advancing to step 9:
789 can be fit into 590 0 times, resulting in a remainder of 590.
Put 0 as the next digit of the answer. 
Result so far: 78158.0
If we subtract 0 from 590, we get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Advancing to step 10:
When dividing 5900 by 789, we get 7 with a remainder of 377.
The next digit of our result is 7. 
Result so far: 78158.07
If we subtract 5523 from 5900, we get 377.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3770, and continue the process.

On to step 11:
If we divide 3770 by 789, we get 4 and a remainder of 614.
The number 4 becomes the next digit in our result. 
Result so far: 78158.074
The remainder is 614 after subtracting 3156 from 3770.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6140, and continue the process.

Going ahead to step 12:
The number 789 fits into 6140 7 times, leaving a remainder of 617.
Put 7 as the next digit of the answer. 
Result so far: 78158.0747
The remainder is 617 after subtracting 5523 from 6140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6170, and continue the process.

Going ahead to step 13:
789 can be fit into 6170 7 times, resulting in a remainder of 647.
The next digit of our result is 7. 
Result so far: 78158.07477
Subtracting 5523 from 6170 leaves us 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.

The final result is 78158.07477 with a remainder of 0.000647.