87943070 divided by 689 
We're looking to find how many times 689 goes into 87943070.

On to step 1:
When dividing 8 by 689, we get 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 689

Moving on to step 2:
The number 689 fits into 87 0 times, leaving a remainder of 87.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Bring next digit (9) of the dividend behind the 87 and repeat the process: 879 / 689

On to step 3:
689 goes into 879 1 times with a remainder of 190.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 190 after subtracting 689 from 879.
Include the next digit (4) from the dividend after 190, then repeat: 1904 / 689

Going ahead to step 4:
If we divide 1904 by 689, we get 2 and a remainder of 526.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
If we take 1378 away from 1904, we end up with 526.
Append the next digit (3) from the dividend to 526 and continue with: 5263 / 689

Moving on to step 5:
689 goes into 5263 7 times with a remainder of 440.
Record the quotient 7 as the next digit in the result. 
Result so far: 127.0
If we subtract 4823 from 5263, we get 440.
Fetch the next digit (0) from the dividend, attach it to 440 and continue: 4400 / 689

Going ahead to step 6:
689 can be fit into 4400 6 times, resulting in a remainder of 266.
Use 6 as the next digit of our solution. 
Result so far: 1276.0
The remainder is 266 after subtracting 4134 from 4400.
Bring next digit (7) of the dividend behind the 266 and repeat the process: 2667 / 689

On to step 7:
The number 689 fits into 2667 3 times, leaving a remainder of 600.
Write down 3 as next digit of the result. 
Result so far: 12763.0
If we subtract 2067 from 2667, we get 600.
Include the next digit (0) from the dividend after 600, then repeat: 6000 / 689

Moving on to step 8:
When dividing 6000 by 689, we get 8 with a remainder of 488.
Record the quotient 8 as the next digit in the result. 
Result so far: 127638.0
Deduct 5512 from 6000 and we're left with 488.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4880, and continue the process.

Moving on to step 9:
The number 689 fits into 4880 7 times, leaving a remainder of 57.
The next digit of our result is 7. 
Result so far: 127638.7
Subtract 4823 from 4880 to get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Going ahead to step 10:
570 divided by 689 is 0 with a remainder of 570.
Write down 0 as next digit of the result. 
Result so far: 127638.7
Subtracting 0 from 570 leaves us with 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Going ahead to step 11:
When dividing 5700 by 689, we get 8 with a remainder of 188.
The next digit of our result is 8. 
Result so far: 127638.708
If we take 5512 away from 5700, we end up with 188.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1880, and continue the process.

Going ahead to step 12:
When dividing 1880 by 689, we get 2 with a remainder of 502.
The number 2 becomes the next digit in our result. 
Result so far: 127638.7082
Deduct 1378 from 1880 and we're left with 502.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5020, and continue the process.

Moving on to step 13:
If we divide 5020 by 689, we get 7 and a remainder of 197.
The next digit of our result is 7. 
Result so far: 127638.70827
The remainder is 197 after subtracting 4823 from 5020.
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 14:
689 goes into 1970 2 times with a remainder of 592.
The number 2 becomes the next digit in our result. 
Result so far: 127638.708272
If we subtract 1378 from 1970, we get 592.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5920, and continue the process.

Let's proceed to step 15:
When dividing 5920 by 689, we get 8 with a remainder of 408.
The next digit of our result is 8. 
Result so far: 127638.7082728
The remainder is 408 after subtracting 5512 from 5920.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

On to step 16:
When dividing 4080 by 689, we get 5 with a remainder of 635.
The number 5 becomes the next digit in our result. 
Result so far: 127638.70827285
If we subtract 3445 from 4080, we get 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

After the division, we end up with 127638.70827285 and a remainder of 6.35e-07.