We look at the division of 66142688 by 859 
Our goal is to divide 66142688 by 859.

Going ahead to step 1:
6 divided by 859 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 859

Moving on to step 2:
The number 859 fits into 66 0 times, leaving a remainder of 66.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Append the next digit (1) from the dividend to 66 and continue with: 661 / 859

On to step 3:
If we divide 661 by 859, we get 0 and a remainder of 661.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 661 to get 661.
Grab the next digit (4) from the dividend, add it to 661, then carry on: 6614 / 859

Advancing to step 4:
The number 859 fits into 6614 7 times, leaving a remainder of 601.
Use 7 as the next digit of our solution. 
Result so far: 7.0
Deduct 6013 from 6614 and we're left with 601.
Take the next digit (2) from the dividend and append it to 601, then repeat: 6012 / 859

Let's proceed to step 5:
859 goes into 6012 6 times with a remainder of 858.
Write down 6 as next digit of the result. 
Result so far: 76.0
Deduct 5154 from 6012 and we're left with 858.
Fetch the next digit (6) from the dividend, attach it to 858 and continue: 8586 / 859

Let's proceed to step 6:
859 can be fit into 8586 9 times, resulting in a remainder of 855.
The next digit of our result is 9. 
Result so far: 769.0
Subtracting 7731 from 8586 leaves us with 855.
Append the next digit (8) from the dividend to 855 and continue with: 8558 / 859

Step 7:
859 can be fit into 8558 9 times, resulting in a remainder of 827.
Write down 9 as next digit of the result. 
Result so far: 7699.0
The remainder is 827 after subtracting 7731 from 8558.
Append the next digit (8) from the dividend to 827 and continue with: 8278 / 859

Moving on to step 8:
If we divide 8278 by 859, we get 9 and a remainder of 547.
Record the quotient 9 as the next digit in the result. 
Result so far: 76999.0
Subtracting 7731 from 8278 leaves us with 547.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5470, and continue the process.

Let's proceed to step 9:
859 can be fit into 5470 6 times, resulting in a remainder of 316.
Record the quotient 6 as the next digit in the result. 
Result so far: 76999.6
If we subtract 5154 from 5470, we get 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Step 10:
When dividing 3160 by 859, we get 3 with a remainder of 583.
Record the quotient 3 as the next digit in the result. 
Result so far: 76999.63
Subtracting 2577 from 3160 leaves us with 583.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5830, and continue the process.

Step 11:
When dividing 5830 by 859, we get 6 with a remainder of 676.
Write down 6 as next digit of the result. 
Result so far: 76999.636
If we subtract 5154 from 5830, we get 676.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6760, and continue the process.

Step 12:
The number 859 fits into 6760 7 times, leaving a remainder of 747.
The number 7 becomes the next digit in our result. 
Result so far: 76999.6367
If we take 6013 away from 6760, we end up with 747.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7470, and continue the process.

On to step 13:
7470 divided by 859 is 8 with a remainder of 598.
The next digit of our result is 8. 
Result so far: 76999.63678
If we take 6872 away from 7470, we end up with 598.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5980, and continue the process.

Moving on to step 14:
859 goes into 5980 6 times with a remainder of 826.
Record the quotient 6 as the next digit in the result. 
Result so far: 76999.636786
If we subtract 5154 from 5980, we get 826.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8260, and continue the process.

Advancing to step 15:
859 can be fit into 8260 9 times, resulting in a remainder of 529.
Put 9 as the next digit of the answer. 
Result so far: 76999.6367869
Subtract 7731 from 8260 to get 529.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5290, and continue the process.

Step 16:
The number 859 fits into 5290 6 times, leaving a remainder of 136.
Put 6 as the next digit of the answer. 
Result so far: 76999.63678696
If we take 5154 away from 5290, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

The quotient of the division is 76999.63678696, and the remainder is 1.36e-07.