61389529 divided by 390 
We want to figure out the number of times 61389529 can be divided by 390.

Step 1:
6 divided by 390 is 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Bring next digit (1) of the dividend behind the 6 and repeat the process: 61 / 390

On to step 2:
The number 390 fits into 61 0 times, leaving a remainder of 61.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 61 after subtracting 0 from 61.
Grab the next digit (3) from the dividend, add it to 61, then carry on: 613 / 390

On to step 3:
The number 390 fits into 613 1 times, leaving a remainder of 223.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 390 from 613, we get 223.
Append the next digit (8) from the dividend to 223 and continue with: 2238 / 390

Let's proceed to step 4:
When dividing 2238 by 390, we get 5 with a remainder of 288.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Deduct 1950 from 2238 and we're left with 288.
Take the next digit (9) from the dividend and append it to 288, then repeat: 2889 / 390

On to step 5:
390 goes into 2889 7 times with a remainder of 159.
Put 7 as the next digit of the answer. 
Result so far: 157.0
Subtracting 2730 from 2889 leaves us with 159.
Bring next digit (5) of the dividend behind the 159 and repeat the process: 1595 / 390

Step 6:
390 goes into 1595 4 times with a remainder of 35.
Record the quotient 4 as the next digit in the result. 
Result so far: 1574.0
The remainder is 35 after subtracting 1560 from 1595.
Append the next digit (2) from the dividend to 35 and continue with: 352 / 390

Going ahead to step 7:
390 goes into 352 0 times with a remainder of 352.
Use 0 as the next digit of our solution. 
Result so far: 15740.0
If we take 0 away from 352, we end up with 352.
Bring next digit (9) of the dividend behind the 352 and repeat the process: 3529 / 390

Advancing to step 8:
The number 390 fits into 3529 9 times, leaving a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 157409.0
Deduct 3510 from 3529 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Advancing to step 9:
When dividing 190 by 390, we get 0 with a remainder of 190.
Write down 0 as next digit of the result. 
Result so far: 157409.0
If we take 0 away from 190, we end up with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 10:
390 can be fit into 1900 4 times, resulting in a remainder of 340.
The next digit of our result is 4. 
Result so far: 157409.04
Deduct 1560 from 1900 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 11:
The number 390 fits into 3400 8 times, leaving a remainder of 280.
The next digit of our result is 8. 
Result so far: 157409.048
Deduct 3120 from 3400 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Moving on to step 12:
When dividing 2800 by 390, we get 7 with a remainder of 70.
The number 7 becomes the next digit in our result. 
Result so far: 157409.0487
Subtract 2730 from 2800 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Going ahead to step 13:
390 can be fit into 700 1 times, resulting in a remainder of 310.
Record the quotient 1 as the next digit in the result. 
Result so far: 157409.04871
Subtracting 390 from 700 leaves us with 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3100, and continue the process.

Let's proceed to step 14:
390 can be fit into 3100 7 times, resulting in a remainder of 370.
Write down 7 as next digit of the result. 
Result so far: 157409.048717
If we subtract 2730 from 3100, we get 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Let's proceed to step 15:
When dividing 3700 by 390, we get 9 with a remainder of 190.
The next digit of our result is 9. 
Result so far: 157409.0487179
Deduct 3510 from 3700 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Moving on to step 16:
If we divide 1900 by 390, we get 4 and a remainder of 340.
Put 4 as the next digit of the answer. 
Result so far: 157409.04871794
Deduct 1560 from 1900 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

The quotient of the division is 157409.04871794, and the remainder is 3.4e-07.