We're dividing 88077690 by 210 
Let's see how many times 210 fits into 88077690.

Going ahead to step 1:
The number 210 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 210

On to step 2:
When dividing 88 by 210, we get 0 with a remainder of 88.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 88 and we're left with 88.
Append the next digit (0) from the dividend to 88 and continue with: 880 / 210

Let's proceed to step 3:
When dividing 880 by 210, we get 4 with a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 840 away from 880, we end up with 40.
Bring next digit (7) of the dividend behind the 40 and repeat the process: 407 / 210

Advancing to step 4:
If we divide 407 by 210, we get 1 and a remainder of 197.
Use 1 as the next digit of our solution. 
Result so far: 41.0
The remainder is 197 after subtracting 210 from 407.
Bring next digit (7) of the dividend behind the 197 and repeat the process: 1977 / 210

Moving on to step 5:
210 goes into 1977 9 times with a remainder of 87.
Write down 9 as next digit of the result. 
Result so far: 419.0
If we take 1890 away from 1977, we end up with 87.
Append the next digit (6) from the dividend to 87 and continue with: 876 / 210

Going ahead to step 6:
If we divide 876 by 210, we get 4 and a remainder of 36.
Record the quotient 4 as the next digit in the result. 
Result so far: 4194.0
If we subtract 840 from 876, we get 36.
Grab the next digit (9) from the dividend, add it to 36, then carry on: 369 / 210

Step 7:
The number 210 fits into 369 1 times, leaving a remainder of 159.
Record the quotient 1 as the next digit in the result. 
Result so far: 41941.0
Deduct 210 from 369 and we're left with 159.
Take the next digit (0) from the dividend and append it to 159, then repeat: 1590 / 210

On to step 8:
When dividing 1590 by 210, we get 7 with a remainder of 120.
Put 7 as the next digit of the answer. 
Result so far: 419417.0
If we take 1470 away from 1590, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 9:
The number 210 fits into 1200 5 times, leaving a remainder of 150.
Use 5 as the next digit of our solution. 
Result so far: 419417.5
The remainder is 150 after subtracting 1050 from 1200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Advancing to step 10:
210 goes into 1500 7 times with a remainder of 30.
Write down 7 as next digit of the result. 
Result so far: 419417.57
Subtract 1470 from 1500 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 11:
When dividing 300 by 210, we get 1 with a remainder of 90.
Use 1 as the next digit of our solution. 
Result so far: 419417.571
Deduct 210 from 300 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Going ahead to step 12:
210 can be fit into 900 4 times, resulting in a remainder of 60.
Put 4 as the next digit of the answer. 
Result so far: 419417.5714
Subtract 840 from 900 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 13:
The number 210 fits into 600 2 times, leaving a remainder of 180.
The number 2 becomes the next digit in our result. 
Result so far: 419417.57142
If we take 420 away from 600, we end up with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 14:
210 can be fit into 1800 8 times, resulting in a remainder of 120.
Record the quotient 8 as the next digit in the result. 
Result so far: 419417.571428
If we take 1680 away from 1800, we end up with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 15:
210 goes into 1200 5 times with a remainder of 150.
Record the quotient 5 as the next digit in the result. 
Result so far: 419417.5714285
If we take 1050 away from 1200, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 16:
210 can be fit into 1500 7 times, resulting in a remainder of 30.
Use 7 as the next digit of our solution. 
Result so far: 419417.57142857
If we subtract 1470 from 1500, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 419417.57142857, with a leftover of 3e-08.