61668415 ÷ 859 
We want to figure out the number of times 61668415 can be divided by 859.

Advancing to step 1:
When dividing 6 by 859, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 859

On to step 2:
859 can be fit into 61 0 times, resulting in a remainder of 61.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 61 and we're left with 61.
Bring next digit (6) of the dividend behind the 61 and repeat the process: 616 / 859

Advancing to step 3:
859 can be fit into 616 0 times, resulting in a remainder of 616.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 616 to get 616.
Grab the next digit (6) from the dividend, add it to 616, then carry on: 6166 / 859

Going ahead to step 4:
859 can be fit into 6166 7 times, resulting in a remainder of 153.
The number 7 becomes the next digit in our result. 
Result so far: 7.0
Subtract 6013 from 6166 to get 153.
Include the next digit (8) from the dividend after 153, then repeat: 1538 / 859

Going ahead to step 5:
859 can be fit into 1538 1 times, resulting in a remainder of 679.
Use 1 as the next digit of our solution. 
Result so far: 71.0
Subtract 859 from 1538 to get 679.
Take the next digit (4) from the dividend and append it to 679, then repeat: 6794 / 859

Moving on to step 6:
6794 divided by 859 is 7 with a remainder of 781.
Record the quotient 7 as the next digit in the result. 
Result so far: 717.0
If we take 6013 away from 6794, we end up with 781.
Take the next digit (1) from the dividend and append it to 781, then repeat: 7811 / 859

On to step 7:
If we divide 7811 by 859, we get 9 and a remainder of 80.
Put 9 as the next digit of the answer. 
Result so far: 7179.0
Deduct 7731 from 7811 and we're left with 80.
Include the next digit (5) from the dividend after 80, then repeat: 805 / 859

Step 8:
859 can be fit into 805 0 times, resulting in a remainder of 805.
Use 0 as the next digit of our solution. 
Result so far: 71790.0
If we subtract 0 from 805, we get 805.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8050, and continue the process.

Let's proceed to step 9:
8050 divided by 859 is 9 with a remainder of 319.
The number 9 becomes the next digit in our result. 
Result so far: 71790.9
Deduct 7731 from 8050 and we're left with 319.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3190, and continue the process.

On to step 10:
The number 859 fits into 3190 3 times, leaving a remainder of 613.
Record the quotient 3 as the next digit in the result. 
Result so far: 71790.93
If we subtract 2577 from 3190, we get 613.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6130, and continue the process.

Advancing to step 11:
The number 859 fits into 6130 7 times, leaving a remainder of 117.
Put 7 as the next digit of the answer. 
Result so far: 71790.937
Subtracting 6013 from 6130 leaves us with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Step 12:
If we divide 1170 by 859, we get 1 and a remainder of 311.
Record the quotient 1 as the next digit in the result. 
Result so far: 71790.9371
Deduct 859 from 1170 and we're left with 311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3110, and continue the process.

Step 13:
3110 divided by 859 is 3 with a remainder of 533.
The next digit of our result is 3. 
Result so far: 71790.93713
Subtracting 2577 from 3110 leaves us with 533.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5330, and continue the process.

Step 14:
When dividing 5330 by 859, we get 6 with a remainder of 176.
Put 6 as the next digit of the answer. 
Result so far: 71790.937136
Subtracting 5154 from 5330 leaves us with 176.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1760, and continue the process.

Step 15:
If we divide 1760 by 859, we get 2 and a remainder of 42.
The next digit of our result is 2. 
Result so far: 71790.9371362
Subtract 1718 from 1760 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 16:
The number 859 fits into 420 0 times, leaving a remainder of 420.
Use 0 as the next digit of our solution. 
Result so far: 71790.9371362
The remainder is 420 after subtracting 0 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

In conclusion, the division gives 71790.9371362 with a balance of 4.2e-07.