69661661 divided by 39 
We want to divide 69661661 by 39.

On to step 1:
When dividing 6 by 39, we get 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (9) of the dividend behind the 6 and repeat the process: 69 / 39

Let's proceed to step 2:
39 goes into 69 1 times with a remainder of 30.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 39 from 69, we get 30.
Append the next digit (6) from the dividend to 30 and continue with: 306 / 39

Advancing to step 3:
39 goes into 306 7 times with a remainder of 33.
The next digit of our result is 7. 
Result so far: 17.0
The remainder is 33 after subtracting 273 from 306.
Fetch the next digit (6) from the dividend, attach it to 33 and continue: 336 / 39

Advancing to step 4:
336 divided by 39 is 8 with a remainder of 24.
Put 8 as the next digit of the answer. 
Result so far: 178.0
Subtract 312 from 336 to get 24.
Fetch the next digit (1) from the dividend, attach it to 24 and continue: 241 / 39

Advancing to step 5:
The number 39 fits into 241 6 times, leaving a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 1786.0
Deduct 234 from 241 and we're left with 7.
Take the next digit (6) from the dividend and append it to 7, then repeat: 76 / 39

Going ahead to step 6:
When dividing 76 by 39, we get 1 with a remainder of 37.
Record the quotient 1 as the next digit in the result. 
Result so far: 17861.0
If we subtract 39 from 76, we get 37.
Append the next digit (6) from the dividend to 37 and continue with: 376 / 39

Moving on to step 7:
376 divided by 39 is 9 with a remainder of 25.
The number 9 becomes the next digit in our result. 
Result so far: 178619.0
If we take 351 away from 376, we end up with 25.
Fetch the next digit (1) from the dividend, attach it to 25 and continue: 251 / 39

On to step 8:
The number 39 fits into 251 6 times, leaving a remainder of 17.
The next digit of our result is 6. 
Result so far: 1786196.0
The remainder is 17 after subtracting 234 from 251.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 9:
39 can be fit into 170 4 times, resulting in a remainder of 14.
Put 4 as the next digit of the answer. 
Result so far: 1786196.4
If we take 156 away from 170, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 10:
The number 39 fits into 140 3 times, leaving a remainder of 23.
The next digit of our result is 3. 
Result so far: 1786196.43
The remainder is 23 after subtracting 117 from 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Let's proceed to step 11:
If we divide 230 by 39, we get 5 and a remainder of 35.
Write down 5 as next digit of the result. 
Result so far: 1786196.435
If we take 195 away from 230, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Advancing to step 12:
The number 39 fits into 350 8 times, leaving a remainder of 38.
Put 8 as the next digit of the answer. 
Result so far: 1786196.4358
Subtract 312 from 350 to get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Step 13:
The number 39 fits into 380 9 times, leaving a remainder of 29.
Put 9 as the next digit of the answer. 
Result so far: 1786196.43589
Deduct 351 from 380 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 14:
The number 39 fits into 290 7 times, leaving a remainder of 17.
Use 7 as the next digit of our solution. 
Result so far: 1786196.435897
If we take 273 away from 290, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Moving on to step 15:
When dividing 170 by 39, we get 4 with a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 1786196.4358974
If we take 156 away from 170, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Going ahead to step 16:
39 goes into 140 3 times with a remainder of 23.
Put 3 as the next digit of the answer. 
Result so far: 1786196.43589743
Deduct 117 from 140 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

After the division, we end up with 1786196.43589743 and a remainder of 2.3e-08.