87769357 ÷ 139 
We want to figure out the number of times 87769357 can be divided by 139.

Moving on to step 1:
When dividing 8 by 139, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 139

Let's proceed to step 2:
If we divide 87 by 139, we get 0 and a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 87, we get 87.
Take the next digit (7) from the dividend and append it to 87, then repeat: 877 / 139

Step 3:
139 goes into 877 6 times with a remainder of 43.
Write down 6 as next digit of the result. 
Result so far: 6.0
Subtracting 834 from 877 leaves us with 43.
Append the next digit (6) from the dividend to 43 and continue with: 436 / 139

On to step 4:
The number 139 fits into 436 3 times, leaving a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
If we take 417 away from 436, we end up with 19.
Include the next digit (9) from the dividend after 19, then repeat: 199 / 139

Going ahead to step 5:
When dividing 199 by 139, we get 1 with a remainder of 60.
Put 1 as the next digit of the answer. 
Result so far: 631.0
If we take 139 away from 199, we end up with 60.
Fetch the next digit (3) from the dividend, attach it to 60 and continue: 603 / 139

Step 6:
When dividing 603 by 139, we get 4 with a remainder of 47.
The next digit of our result is 4. 
Result so far: 6314.0
Subtracting 556 from 603 leaves us with 47.
Take the next digit (5) from the dividend and append it to 47, then repeat: 475 / 139

Let's proceed to step 7:
475 divided by 139 is 3 with a remainder of 58.
Put 3 as the next digit of the answer. 
Result so far: 63143.0
Deduct 417 from 475 and we're left with 58.
Take the next digit (7) from the dividend and append it to 58, then repeat: 587 / 139

Advancing to step 8:
The number 139 fits into 587 4 times, leaving a remainder of 31.
The number 4 becomes the next digit in our result. 
Result so far: 631434.0
Subtract 556 from 587 to get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 9:
When dividing 310 by 139, we get 2 with a remainder of 32.
Write down 2 as next digit of the result. 
Result so far: 631434.2
The remainder is 32 after subtracting 278 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Let's proceed to step 10:
The number 139 fits into 320 2 times, leaving a remainder of 42.
Use 2 as the next digit of our solution. 
Result so far: 631434.22
Subtract 278 from 320 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.

The final outcome is 631434.22, with a leftover of 0.042.