Let's divide 85978528 by 620
We want to figure out the number of times 85978528 can be divided by 620.

On to step 1:
The number 620 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Append the next digit (5) from the dividend to 8 and continue with: 85 / 620

Going ahead to step 2:
When dividing 85 by 620, we get 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Append the next digit (9) from the dividend to 85 and continue with: 859 / 620

Step 3:
859 divided by 620 is 1 with a remainder of 239.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Subtract 620 from 859 to get 239.
Include the next digit (7) from the dividend after 239, then repeat: 2397 / 620

Going ahead to step 4:
If we divide 2397 by 620, we get 3 and a remainder of 537.
The next digit of our result is 3. 
Result so far: 13.0
The remainder is 537 after subtracting 1860 from 2397.
Append the next digit (8) from the dividend to 537 and continue with: 5378 / 620

Step 5:
When dividing 5378 by 620, we get 8 with a remainder of 418.
The next digit of our result is 8. 
Result so far: 138.0
Deduct 4960 from 5378 and we're left with 418.
Take the next digit (5) from the dividend and append it to 418, then repeat: 4185 / 620

Advancing to step 6:
620 can be fit into 4185 6 times, resulting in a remainder of 465.
Record the quotient 6 as the next digit in the result. 
Result so far: 1386.0
Deduct 3720 from 4185 and we're left with 465.
Append the next digit (2) from the dividend to 465 and continue with: 4652 / 620

Step 7:
4652 divided by 620 is 7 with a remainder of 312.
The number 7 becomes the next digit in our result. 
Result so far: 13867.0
If we subtract 4340 from 4652, we get 312.
Fetch the next digit (8) from the dividend, attach it to 312 and continue: 3128 / 620

Let's proceed to step 8:
3128 divided by 620 is 5 with a remainder of 28.
Put 5 as the next digit of the answer. 
Result so far: 138675.0
Subtract 3100 from 3128 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Step 9:
620 can be fit into 280 0 times, resulting in a remainder of 280.
The number 0 becomes the next digit in our result. 
Result so far: 138675.0
If we subtract 0 from 280, we get 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Step 10:
The number 620 fits into 2800 4 times, leaving a remainder of 320.
The next digit of our result is 4. 
Result so far: 138675.04
If we subtract 2480 from 2800, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Let's proceed to step 11:
620 can be fit into 3200 5 times, resulting in a remainder of 100.
Use 5 as the next digit of our solution. 
Result so far: 138675.045
Subtracting 3100 from 3200 leaves us with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 12:
1000 divided by 620 is 1 with a remainder of 380.
Use 1 as the next digit of our solution. 
Result so far: 138675.0451
The remainder is 380 after subtracting 620 from 1000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Step 13:
620 can be fit into 3800 6 times, resulting in a remainder of 80.
Put 6 as the next digit of the answer. 
Result so far: 138675.04516
Subtract 3720 from 3800 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 14:
800 divided by 620 is 1 with a remainder of 180.
The number 1 becomes the next digit in our result. 
Result so far: 138675.045161
If we take 620 away from 800, 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.

Advancing to step 15:
620 can be fit into 1800 2 times, resulting in a remainder of 560.
The next digit of our result is 2. 
Result so far: 138675.0451612
Deduct 1240 from 1800 and we're left with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Advancing to step 16:
5600 divided by 620 is 9 with a remainder of 20.
The number 9 becomes the next digit in our result. 
Result so far: 138675.04516129
Subtract 5580 from 5600 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

The final result is 138675.04516129 with a remainder of 2e-08.